code_already_used

Status 409. The code has already been spent at checkout.

What it means

The code was spent at checkout. It cannot be cancelled, and no points come back.

What to do

Nothing was changed, and nothing needs to be.

Safe to send again?

No. The same request will get the same answer.

Where you can meet it

• POST /members/{member_key}/codes/void: Cancel a reward code and give the member back its points

Every code, and the shape of an error answer: Errors.