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Payment / Alternative payment methods / Colombia / Cash

HPP#

POST https://payments.apipro.io/v2/payment

Initiate cash payments in Colombia using the Hosted Payment Page (HPP) integration. The response contains a redirect_url to an ApiPro-hosted page where the customer receives a payment voucher with a barcode and payment reference. The customer then completes the payment using the voucher, following the instructions on the page.

How It Works#

  1. Send a request to create a payment with widget.method set to "cash_colombia" and currency set to "COP".
  2. Check error_code in the response. If it is not 0, the transaction has failed. Otherwise, the transaction is created with status: "new".
  3. Redirect the customer to the redirect_url from the response. The customer sees an ApiPro-hosted page with the payment voucher.
  4. The customer completes the payment using the barcode or payment reference from the voucher.
  5. The customer is returned to your redirect_url, cancel_url or error_url (optional request parameters), depending on the outcome.
  6. Receive a callback at your callback_url when the payment reaches a terminal state.

Request Parameters#

Root Object#

Parameter Type Required Description
widget.method string Yes Must be "cash_colombia"
reference string Yes Unique merchant order ID.
currency string Yes Must be "COP".
amount integer Yes Transaction amount in COP.
redirect_url string Conditional URL to redirect the customer after payment completion.
callback_url string Conditional Server-to-server notification URL for async status updates.
cancel_url string Conditional URL to redirect the customer if they cancel.
extra object Yes Additional metadata for transaction routing.

Customer Object (customer)#

Parameter Type Required Description
customer.identifier string Yes Unique customer ID in your system.
customer.email string Yes Customer's email address.
customer.phone string Yes Customer's phone number (Colombian format, e.g., +573103195622).
customer.first_name string Yes Customer's first name.
customer.last_name string Yes Customer's last name.
customer.itn string Yes Colombian identification number (CC / CE / NIT).

Widget Object (widget)#

Parameter Type Required Description
widget.method string Yes Must be "cash_colombia".
widget.locale string No Language for the hosted payment page (e.g., "es", "en"). Defaults to "en".

Extra / Metadata Object (extra)#

Parameter Type Required Description
extra.meta.documentType string Yes Document type — see Colombian Document Types table.

Colombian Document Types#

Code Description Format (used in customer.itn)
CO_CC Cédula de Ciudadanía (citizens 18+) 6–10 digits, no separators, e.g. 1020304050
CO_CE Cédula de Extranjería (foreign residents) 6–10 digits, no separators, e.g. 1020304050
CO_NIT NIT (legal entities / self-employed) XXXXXXXXX-X, e.g. 900123456-7

Responses#

Status When
200 OK A successful request returns a redirect_url where the customer must be sent to generate a cash payment voucher. See Succesful transaction in the Responses tab.
400 Bad Request Returned when required fields are missing or validation fails. See Invalid fields (validation failed) in the Responses tab.
504 Gateway Timeout A 504 Gateway Timeout may occur after 30 seconds. You can safely retry the request.

Callback Examples#

Callbacks are sent to your callback_url when the transaction reaches a final status. Always validate the callback signature to avoid suspicious activity. Examples for each final status (Success, Declined, Error, Expired, Expired (Payment Intention)) are in the Callback tab.

Business Logic & Regional Requirements#

  • Currency: Only "COP" (Colombian Peso) is supported — currency must be "COP".
  • Method: widget.method must be "cash_colombia" — snake_case / lower case only. Do not use camelCase, PascalCase or UPPER CASE ("cashColombia", "CashColombia", "CASH_COLOMBIA"): the value will not be recognized and the payment method will be rejected.
  • Reference: reference must be unique for each payment.
  • Customer Data: customer.identifier, customer.email, customer.phone, customer.first_name, customer.last_name and customer.itn are required.
  • Document Type: Pass the type of the customer's document in extra.meta.documentType (e.g. "CO_CC" for Cédula de Ciudadanía); customer.itn must contain the number of that document.
  • Initial Response: A successful request returns error_code: 0 and status: "new". The payment page URL is returned in the root redirect_url field of the response.
  • Return URLs: redirect_url, cancel_url and error_url in the request are optional and define where the customer is returned after leaving the payment page. They are different from the redirect_url in the response, which is the payment page itself.
  • Final Status: The transaction result is delivered via callback to callback_url when the payment reaches a terminal state.
  • Signature Validation: Always validate the callback signature before processing.

Final Status Reference#

For a full explanation of every transaction status (including whether it's final and successful), see Transaction Statuses.

Headers#

Header Value
Content-Type application/json
Authorization {{authorization}}
Digest {{digest}}
Host {{host}}
Date {{date}}

See Authentication & Signature for how to build the signed headers.

Request body#

Annotations in the example are the field requirements: required, optional or conditional. Comments are stripped automatically by the Postman collection before signing; remove them in your own requests.

{
    "reference": "postman-{{time}}", // required, unique, 1-40 characters, [a-z0-9-_]+
    "currency": "COP", // required, only COP is supported
    "amount": 15000, // required
    "customer": { // required
        "identifier": "postman-{{time}}", // required
        "phone": "+573103195622", // required, Colombian format
        "email": "carlos.mendez@example.com", // required
        "first_name": "Carlos", // required
        "last_name": "Mendez", // required
        "itn": "1130628333" // required, CC (Cédula de Ciudadanía) / CE (Cédula de Extranjería) / NIT (Número de Identificación Tributaria); must match extra.meta.documentType
    },
    "widget": { // required
        "method": "cash_colombia", // required, snake_case / lower case only: "cash_colombia" (not "CASH_COLOMBIA" or "CashColombia")
        "locale": "es" // optional, language of the hosted payment page ("es", "en"), defaults to "en"
    },
    "redirect_url": "https://merchant.shop.com/", // conditional
    "callback_url": "https://merchant.shop.com/success", // conditional
    "cancel_url": "https://merchant.shop.com/cancel", // conditional
    "extra": { // required
        "meta": { // required
            "documentType": "CO_CC" // required, CO_CC, CO_CE or CO_NIT (see Colombian Document Types)
        }
    }
}

Fields#

Field Type Requirement / note
reference string required, unique, 1-40 characters, [a-z0-9-_]+
currency string required, only COP is supported
amount integer required
customer object required
customer.identifier string required
customer.phone string required, Colombian format
customer.email string required
customer.first_name string required
customer.last_name string required
customer.itn string required, CC (Cédula de Ciudadanía) / CE (Cédula de Extranjería) / NIT (Número de Identificación Tributaria); must match extra.meta.documentType
widget object required
widget.method string required, snake_case / lower case only: "cash_colombia" (not "CASH_COLOMBIA" or "CashColombia")
widget.locale string optional, language of the hosted payment page ("es", "en"), defaults to "en"
redirect_url string conditional
callback_url string conditional
cancel_url string conditional
extra object required
extra.meta object required
extra.meta.documentType string required, CO_CC, CO_CE or CO_NIT (see Colombian Document Types)

Responses#

Response Examples

Merchant not found
{
  "error_code": 35,
  "error_reason": "Merchant not found",
  "description": "The requested resource is undefined",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:01:00.00Z"
}
Required fields are missing: method or widget.method, reference
{
  "error_code": 31,
  "error_reason": "Required fields are missing: method or widget.method, reference",
  "timestamp": "2025-10-26T14:03:00.00Z"
}
Using 'method' and 'widget.method' at the same time.
{
  "error_code": 30,
  "error_reason": "Invalid params",
  "description": "Widget and method cannot be used together",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:04:00.00Z"
}
Card can only be used with specific methods. Check documentation
{
  "error_code": 30,
  "error_reason": "Invalid params",
  "description": "Card can only be used with specific methods. Check documentation",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:05:00.00Z"
}
Customer is blocked
{
  "error_code": 451,
  "error_reason": "General risk decline",
  "description": "Customer is blocked",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:06:00.00Z"
}
Customer is blocked for all merchant projects
{
  "error_code": 451,
  "error_reason": "General risk decline",
  "description": "Customer is blocked for all merchant projects",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:02.00Z"
}
Customer is blocked for the specified project
{
  "error_code": 451,
  "error_reason": "General risk decline",
  "description": "Customer is blocked for the specified project",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:04.00Z"
}
Customer is blocked system-wide
{
  "error_code": 451,
  "error_reason": "General risk decline",
  "description": "Customer is blocked system-wide",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:06.00Z"
}
Customer is globally locked
{
  "error_code": 451,
  "error_reason": "General risk decline",
  "description": "Customer is globally locked",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:08.00Z"
}
Timeout while requesting routing
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Routing request timeout",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:01.00Z"
}
Payment transaction timeout after some time
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Payment transaction timeout after 30 seconds",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:03.00Z"
}
Unknown routing error
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Unknown routing error",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:02.00Z"
}
Payment transaction was cancelled
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Payment transaction was cancelled",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:04.00Z"
}
Internal error: Data is empty
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Internal error: Value cannot be null. (Parameter 'data')",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:05.00Z"
}
Endpoint type wasn't found
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Internal error: Endpoint type cannot be null or empty (Parameter 'endpointType')",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:06.00Z"
}
Mid configuration error
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Internal error: Mid [Mid ID] no longer exists in configuration",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:07.00Z"
}
Routing service error: Converting data error
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Routing service error: The JSON value could not be converted to System.Guid.",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:08.00Z"
}
Routing service error
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Routing service error",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:08.00Z"
}
Broker transport failure
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Internal error: Broker transport failure",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:09.00Z"
}
Internal error
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "Internal error",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:09.00Z"
}
An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "description": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:08:10.00Z"
}
An unexpected error occurred while processing the request
{
  "error_code": 200,
  "error_reason": "Transaction processing error",
  "description": "An unexpected error occurred while processing the request",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:09:00.00Z"
}
Invalid method challenge configuration. Settings not found.
{
  "error_code": 121,
  "error_reason": "Invalid method challenge configuration. Please reconfigure method challenge type settings",
  "description": "Invalid method challenge configuration. Settings not found.",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:10:00.00Z"
}
Route is invalid (Incorrect method, mid settings)
{
  "error_code": 121,
  "error_reason": "Route is invalid",
  "description": "There is more than one challenge setting for a method. Please reconfigure method challenge type settings.",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:11:00.00Z"
}
Getting currency rate info error.
{
  "error_code": 200,
  "error_reason": "While getting currency rate, error happend",
  "description": "An internal error occurred while processing currency information",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:12:00.00Z"
}
Error processing currency information.
{
  "error_code": 200,
  "error_reason": "Error with payment configurations",
  "description": "An internal error occurred while processing currency information",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:13:00.00Z"
}
Error with wallet
{
  "error_code": 200,
  "error_reason": "Error with wallet",
  "description": "An internal error occurred while processing currency information",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:14:00.00Z"
}
Failed to register transaction
{
  "error_code": 200,
  "error_reason": "Failed to register transaction",
  "description": "An internal error occurred while processing currency information",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:15:00.00Z"
}
Failed saving card info
{
  "error_code": 200,
  "error_reason": "Transaction processing error",
  "description": "Failed to save card information",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:16:00.00Z"
}
Transaction processing error
{
  "error_code": 200,
  "error_reason": "Transaction processing error",
  "description": "Failed to register the transaction",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:17:00.00Z"
}
Mid doesn't support challenge type for method (mid or method settings problem)
{
  "error_code": 121,
  "error_reason": "Route is invalid",
  "description": "Mid does not support challenge type [challengeType] for method [method]",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:18:00.00Z"
}
Mid is disabled
{
  "error_code": 121,
  "error_reason": "Route is invalid",
  "description": "Mid is disabled",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:19:00.00Z"
}
Bank doesn't support currency
{
  "error_code": 1051,
  "error_reason": "Bank doesn't support currency",
  "description": "Blocked routing for transaction: Invalid currency",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:20:00.00Z"
}
Bank doesn't support payment method
{
  "error_code": 1054,
  "error_reason": "Bank doesn't support payment method",
  "description": "Blocked routing for transaction: Invalid method: [method]",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:21:00.00Z"
}
Bank does not support transaction: Invalid payment type
{
  "error_code": 1050,
  "error_reason": "Bank does not support transaction",
  "description": "Blocked routing for transaction: Invalid payment type",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:22:00.00Z"
}
Mid request timeout
{
  "error_code": 200,
  "error_reason": "Mid request timeout",
  "request_id": null,
  "reference": "YOUR_REFERENCE",
  "timestamp": "2025-10-26T14:24:00.00Z"
}
Communication error
{
  "error_code": 200,
  "error_reason": "Communication error",
  "request_id": "[UUID_ТРАНЗАКЦІЇ]",
  "reference": "YOUR_REFERENCE",
  "timestamp": "2025-10-26T14:25:00.00Z"
}
Forbidden
{
  "error_code": 5,
  "error_reason": "Forbidden",
  "timestamp": "2025-10-26T14:33:00.00Z"
}
Some unexpected message
{
  "error_code": 5,
  "error_reason": "[Some unexpected message]",
  "timestamp": "2025-10-26T14:33:00.00Z"
}
Failed to register card transaction
{
  "error_code": 200,
  "error_reason": "Failed to register card transaction",
  "request_id": null,
  "reference": "YOUR_REFERENCE",
  "timestamp": "2025-10-26T14:34:00.00Z"
}
Failed to register cascade transaction
{
  "error_code": 200,
  "error_reason": "Failed to register cascade transaction",
  "request_id": null,
  "reference": "YOUR_REFERENCE",
  "timestamp": "2025-10-26T14:35:00.00Z"
}
Endpoint type cannot be null or empty
{
  "error_code": 200,
  "error_reason": "Endpoint type cannot be null or empty",
  "request_id": null,
  "reference": "YOUR_REFERENCE",
  "timestamp": "2025-10-26T14:36:00.00Z"
}
Data is empty
{
  "error_code": 200,
  "error_reason": "Value cannot be null. (Parameter 'data')",
  "request_id": null,
  "reference": "YOUR_REFERENCE",
  "timestamp": "2025-10-26T14:36:00.00Z"
}
An unexpected internal error occured
{
  "error_code": 200,
  "error_reason": "Transaction processing error",
  "description": "An unexpected internal error occurred",
  "request_id": "YOUR_REFERENCE",
  "status": "error",
  "timestamp": "2025-10-26T14:38:00.00Z"
}
Handler returned null response
{
  "error_code": 210,
  "error_reason": "Handler returned null response",
  "description": "Handler returned null response",
  "request_id": "your_transaction_reference",
  "status": "error",
  "timestamp": "2025-10-26T12:02:00.000Z"
}
Rate limit exceeded
{
  "error_code": 210,
  "error_reason": "Rate limit exceeded",
  "description": "Rate limit exceeded",
  "request_id": "your_transaction_reference",
  "status": "error",
  "timestamp": "2025-10-26T12:01:00.000Z"
}
Access denied: Invalid or missing access token
{
  "error_code": 210,
  "error_reason": "Access denied: Invalid or missing access token",
  "description": "Access denied: Invalid or missing access token",
  "request_id": "your_transaction_reference",
  "status": "error",
  "timestamp": "2025-10-26T12:00:00.000Z"
}
Request cannot be null
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Request cannot be null"
}
Flow cache limit exceeded
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Flow cache limit exceeded"
}
Flow configuration not found for project: {projectId}
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Flow configuration not found for project: {projectId}"
}
Invalid flow configuration
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Invalid flow configuration"
}
Flow execution failed
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Flow execution failed"
}
Circular reference detected at node: {NodeIdentifier}
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Circular reference detected at node: {NodeIdentifier}"
}
Node not found: {NodeIdentifier}
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Node not found: {NodeIdentifier}"
}
Flow execution limit exceeded
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Flow execution limit exceeded"
}
Flow ended without result
{
  "error_code": 121,
  "error_reason": "An issue has been detected in the routing settings. For instance, it could be due to a disabled project or bank",
  "request_id": "[YOUR_REFERENCE]",
  "reference": "",
  "status": "error",
  "timestamp": "2025-10-04T12:56:41.94Z",
  "description": "Flow ended without result"
}
Duplicated reference
{
  "error_code": 108,
  "error_reason": "Duplicated reference",
  "request_id": "3829f5bd-6dcb-41f9-a4ba-3ff8b65a3cfc",
  "reference": "",
  "timestamp": "2025-11-10T08:47:22.81Z"
}
Succesful transaction
{
  "identifier": "CAS015162655",
  "reference": "postman-1790171328619",
  "request_id": "098ce1d0-5a04-4a1a-9cdc-f08842d6ec8c",
  "status": "new",
  "redirect_url": "https://checkout.apipro.io/payment/...",
  "error_code": 0
}
Invalid fields (validation failed)
{
  "request_id": "e76789fa-cb93-4643-9506-0314c8f82450",
  "error_code": 1,
  "error_reason": "Invalid fields: \nreference - must match \"[a-z0-9-_]+\";\n reference - size must be between 1 and 40",
  "timestamp": "2024-02-09T17:32:46.131339",
  "error_fields": {
    "reference": "must match \"[a-z0-9-_]+\"; size must be between 1 and 40"
  }
}
Missing Authorization header
{
  "error_code": 31,
  "error_reason": "Missing Authorization header",
  "timestamp": "2025-10-26T16:01:00.00Z"
}
Invalid Authorization header format
{
  "error_code": 31,
  "error_reason": "Invalid authorization header format",
  "timestamp": "2025-10-26T16:03:00.00Z"
}
Invalid signature format
{
  "error_code": 31,
  "error_reason": "Invalid signature format",
  "timestamp": "2025-10-26T16:03:00.00Z"
}
Unsupported algorithm
{
  "error_code": 31,
  "error_reason": "Unsupported algorithm",
  "timestamp": "2025-10-26T16:04:00.00Z"
}
Invalid API key
{
  "error_code": 31,
  "error_reason": "Invalid API key",
  "timestamp": "2025-10-26T16:05:00.00Z"
}
Missing Date header
{
  "error_code": 31,
  "error_reason": "Missing Date header",
  "timestamp": "2025-10-26T16:06:00.00Z"
}
Invalid date format
{
  "error_code": 31,
  "error_reason": "Invalid date format",
  "timestamp": "2025-10-26T16:07:00.00Z"
}
Date is outdated or invalid
{
  "error_code": 31,
  "error_reason": "Date is outdated or invalid",
  "timestamp": "2025-10-26T16:08:00.00Z"
}
Missing Digest header
{
  "error_code": 31,
  "error_reason": "Missing Digest header",
  "timestamp": "2025-10-26T16:09:00.00Z"
}
Invalid digest
{
  "error_code": 31,
  "error_reason": "Invalid digest",
  "timestamp": "2025-10-26T16:10:00.00Z"
}
Request timestamp has already been used
{
  "error_code": 31,
  "error_reason": "Request timestamp has already been used",
  "timestamp": "2025-10-26T16:11:00.00Z"
}
Invalid headers specification
{
  "error_code": 31,
  "error_reason": "Invalid headers specification",
  "timestamp": "2025-10-26T16:12:00.00Z"
}
Invalid signature
{
  "error_code": 31,
  "error_reason": "Invalid signature",
  "timestamp": "2025-10-26T16:13:00.00Z"
}
Processing error:
{
  "error_code": 210,
  "error_reason": "Processing error:",
  "description": "Processing error:",
  "request_id": "your_transaction_reference",
  "status": "error",
  "timestamp": "2025-10-26T12:03:00.000Z"
}
Missing required authentication headers
{
  "error_code": 31,
  "error_reason": "Missing required authentication headers",
  "timestamp": "2025-10-26T14:04:00.00Z"
}

Callback Notifications

The system sends an HTTP callback to the callback_url of your request when a transaction reaches a final state. Always verify the callback signature; see Callback Verification.

Callback Payload

Callback: Success
{
  "billing_amount": "15000.00",
  "billing_currency": "COP",
  "fee_amount": "1275.00",
  "fee_currency": "COP",
  "error_code": 0,
  "reference": "postman-1790172482006",
  "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
  "status": "success",
  "amount": "15000.00",
  "currency": "COP",
  "payment": {
    "error_code": 0,
    "identifier": "CAS015163173",
    "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
    "reference": "postman-1790172482006",
    "method": "cash_colombia",
    "type": "payment",
    "mode": "initial",
    "status": "success",
    "status_date": "2026-09-23T14:08:23.606Z",
    "customer": {
      "identifier": "postman-1790172482006",
      "email": "carlos.mendez@example.com",
      "phone": "+573103195622",
      "first_name": "Carlos",
      "last_name": "Mendez",
      "itn": "1130628333"
    },
    "creation_date": "2026-09-23T14:08:02.494Z"
  }
}
Callback: Declined
{
  "error_code": 0,
  "error_reason": "General bank decline",
  "reference": "postman-1790172482006",
  "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
  "status": "declined",
  "amount": "15000.00",
  "currency": "COP",
  "payment": {
    "error_code": 0,
    "error_reason": "General bank decline",
    "identifier": "CAS015163173",
    "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
    "reference": "postman-1790172482006",
    "method": "cash_colombia",
    "type": "payment",
    "mode": "initial",
    "status": "declined",
    "status_date": "2026-09-23T14:08:28.731Z",
    "customer": {
      "identifier": "postman-1790172482006",
      "email": "carlos.mendez@example.com",
      "phone": "+573103195622",
      "first_name": "Carlos",
      "last_name": "Mendez",
      "itn": "1130628333"
    },
    "creation_date": "2026-09-23T14:08:02.494Z"
  }
}
Callback: Error
{
  "error_code": 0,
  "error_reason": "General bank decline",
  "reference": "postman-1790172482006",
  "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
  "status": "error",
  "amount": "15000.00",
  "currency": "COP",
  "payment": {
    "error_code": 0,
    "error_reason": "General bank decline",
    "identifier": "CAS015163173",
    "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
    "reference": "postman-1790172482006",
    "method": "cash_colombia",
    "type": "payment",
    "mode": "initial",
    "status": "error",
    "status_date": "2026-09-23T14:08:33.091Z",
    "customer": {
      "identifier": "postman-1790172482006",
      "email": "carlos.mendez@example.com",
      "phone": "+573103195622",
      "first_name": "Carlos",
      "last_name": "Mendez",
      "itn": "1130628333"
    },
    "creation_date": "2026-09-23T14:08:02.494Z"
  }
}
Callback: Expired
{
  "error_code": 105,
  "error_reason": "Transaction expired",
  "reference": "postman-1790172482006",
  "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
  "status": "expired",
  "amount": "15000.00",
  "currency": "COP",
  "payment": {
    "error_code": 105,
    "error_reason": "Transaction expired",
    "identifier": "CAS015163173",
    "request_id": "4c85b279-8015-48d7-b83c-aa5f734e1d9b",
    "reference": "postman-1790172482006",
    "method": "cash_colombia",
    "type": "payment",
    "mode": "initial",
    "status": "expired",
    "status_date": "2026-09-23T14:08:37.675Z",
    "customer": {
      "identifier": "postman-1790172482006",
      "email": "carlos.mendez@example.com",
      "phone": "+573103195622",
      "first_name": "Carlos",
      "last_name": "Mendez",
      "itn": "1130628333"
    },
    "creation_date": "2026-09-23T14:08:02.494Z"
  }
}
Callback: Expired (Payment Intention)
{
  "reference": "order-00001",
  "request_id": "de2fc4ea-0b64-4ba4-b1f3-eb4394e158a1",
  "status": "expired",
  "currency": "COP",
  "amount": "5466",
  "error_code": 620,
  "error_reason": "Payment intention expired"
}