This DELETE endpoint allows you to remove one of the uploaded reports. You can delete it in two scenarios:

Report is waiting to be processed - report is in pending status. In this case you might want to remove it, if for example you chose wrong gateway configuration or uploaded wrong file. Deletion will cause this report to be entirely skipped from processing.
Report processing is failing - report is in error status. In this case, report might have some processing issue and you also might have received report.process-attempt-failed event (https://docs.processout.com/reference/events#payout-and-report-events). To unblock other reports, you can decide to delete this report and inspect the processing issue further.

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