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POST
Voids (cancels) one or more orders by tracking number. Voided orders cannot be shipped.
Orders cannot be voided after they enter IN_TRANSIT status.

Request Body

string
required
Unique key to prevent duplicate void operations (8-64 characters).
array
required
List of tracking numbers to void (1-100 items).
string
required
Reason for voiding (5-500 characters). Required for audit purposes.

Response

boolean
Whether the request succeeded
array
List of successfully voided tracking numbers
array
List of tracking numbers that could not be voided

Void Rules

Idempotency

If you retry a void request with the same idempotencyKey, the original response is returned:
  • If the original void succeeded, success is returned again
  • Already-voided parcels return success without error