Initiate the cancellation of active payment processes, belonging to the same bulk. If successful, payments eligible for cancellation will be cancelled and have a final state with status = Cancelled.

When you initiate a cancellation, the system will attempt to cancel each individual payment in the bulk, applying the same cancellation rules as for single payments (see cancelling a payment).

If some payments have already been processed, partial cancellation is allowed. After processing, the system returns a summary indicating which payments were successfully cancelled.