Failed Payments — Proposed Guide

Planned API — Reference Only

Failed Payments: A failed attempt may arise from invalid instrument details, a policy restriction or a provider rejection. The reimbursement record and…

Overview

A failed attempt may arise from invalid instrument details, a policy restriction or a provider rejection. The reimbursement record and its individual failed attempt should remain distinct.

Key concepts

Use a structured failure code with an appropriate visibility level. Separate retryable technical failures from failures requiring human correction.

Implementation considerations

A retry must not occur until duplicate-payment risk is resolved. Avoid displaying confidential provider diagnostics to unauthorized users.

Illustrative data model

This local fixture shows a possible representation for the concepts above. It is not an endpoint response, production configuration or a claim that the described capability is implemented.

JSON fixture

Fictional concept fixture

{
  "reference_only": true,
  "topic": "Failed Payments",
  "attempt_id": "attempt_example_123",
  "failure_code": "instrument_review_required",
  "status": "draft",
  "occurred_at": "2026-01-15T12:00:00Z"
}

Design review checklist

Document which organization owns the failed payments representation and which actor may view or change it.
Test the boundaries of attempt id, failure code, status, occurred at using synthetic values, including missing or inconsistent references.
Before future implementation, obtain an approved contract and review failure behavior. This documentation does not authorize production activation.

Proposed data types

Illustrative field dictionary
Name	Type	Description
attempt_id	string	Stable fictional attempt reference; not a secret and not evidence that a resource exists.
failure_code	string	Hypothetical failure classification requiring review rather than a blind payment retry.
status	string	Proposed lifecycle value. Its meaning depends on the resource and must not be inferred from HTTP success.
occurred_at	string (date-time)	Synthetic UTC timestamp. Business occurrence time may differ from delivery or processing time.

Payment Completion

Reimbursements & Payments

Returned Payments