# `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`](https://matrixrewards.co.uk/docs/api/2026-10/members.md#adjustMemberPoints): Add points to a member's balance, or take them away

Every code, and the shape of an error answer: [Errors](https://matrixrewards.co.uk/docs/errors.md).

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Page: https://matrixrewards.co.uk/docs/errors/member_has_no_store
Contract: 2026-10 sha256:35af153960028890fea5738799f5a71e535e1eea4dd3f6b8d5f50b37f02363da