member_has_no_store
Status 409. This member is not linked to a store the change could be booked to.
What it means
The member is linked to no store on this account, so there is nowhere to book the change. Nothing was changed.
What to do
This change cannot be made through the API for this member.
Safe to send again?
No. The same request will get the same answer.
Where you can meet it
POST /members/{member_key}/adjustments: Add points to a member's balance, or take them away
Every code, and the shape of an error answer: Errors.