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Cancels an operation when still eligible. Used for operational management of unfinalised collections.
Cancellation is allowed when the operation is in CREATED, or in OPENED and has no pending transaction (i.e. the payer is not in the middle of authorizing the payment at their bank). Responds with 204 No Content on success. Idempotent: if the operation is already CANCELLED, it is a no-op and still returns 204. Returns 409 if the operation is in another final state (COMPLETED, REJECTED, EXPIRED, NOT_DELIVERED) or has a pending transaction. If the cancelled operation was the only active one in its flow, the flow also transitions to CANCELLED.
OAuth2 for M2M integrations using Client Credentials
"/idp/oauth2/token""API"M2M API scopeTenant identifier that contains the organisation UUID
"1f56c928-7621-44fe-8cda-c211fda0a828""uuid"Operation UUID
"uuid"Operation successfully cancelled (no content)