Money needs a clear history.
Retries, uncertain outcomes and corrections should leave a record your team can follow.
A delayed response should not turn into a second withdrawal. A correction should not erase the original record. A clear money system needs to explain both what happened and what still needs attention.
Stable operation identifiers let repeated requests refer to the same money operation. When the outcome is uncertain, it needs to remain visible for reconciliation, rather than being treated as either completed or failed.
Corrections add new entries instead of rewriting history. That keeps the original operation and the correction available for finance and support to investigate together.
Reporting should connect to the records behind the numbers. A chart is more useful when the team can trace a figure back to its source and understand the decisions that produced it.