> For the complete documentation index, see [llms.txt](https://help.openloyalty.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.openloyalty.io/api-reference/member/mark-coupon-as-used.md).
# Mark coupon as used
Integration\
\
This method allows redeeming a Coupon that is assigned to a specific Member (marks it as used by the Administrator).
Optionally, the `usedAt` field can be sent to record the date and time the Coupon was actually used. When it is not provided, the current date and time is used.
````json
{"openapi":"3.0.0","info":{"title":"Open Loyalty","version":"0.0.1"},"tags":[{"name":"Member","description":"These endpoints allow you to easily manage members."}],"servers":[{"url":"http://openloyalty.localhost"}],"security":[{"Bearer":[]},{"token":[]}],"components":{"securitySchemes":{"Bearer":{"type":"http","description":"Open Loyalty has the JWT authorization.\nTo learn what a JSON Web Token is and how it works, check out Introduction to JSON Web Tokens \n\n### Obtain an access token\n\nSend a request with the parameters username and password\n\n#### Definition\n\n`POST /api/admin/login_check` [Go to definition](#operation/adminLoginCheck)\\\n`POST /api/{storeCode}/member/login_check` [Go to definition](#operation/memberLoginCheck)\n\n#### Example\n\n```bash\ncurl {HOST}/api/admin/login_check\n -H 'Content-Type: application/json;charset=UTF-8'\n -H 'Accept: application/json, text/plain, */*'\n --data-binary '{\"username\":\"admin\",\"password\":\"password\"}'\n```\n\n#### Example Response\n\n```json\n{\n \"token\":\"eyJhbGciOiJSUzI1NiIsInR5cCI6...\",\n \"refresh_token\":\"0558f8bb29948c4e54c443f...\"\n}\n```\n\n### Using JSON Web Token\n\nAdd authorization header to each request\\\n`Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6...`\\\nYou can now access any API method you want under the /api prefix.\n\n#### Example\n```bash\ncurl {HOST}/api/{storeCode}/analytics/members\n -H 'Accept: application/json'\n -H 'Content-type: application/x-www-form-urlencoded'\n -H 'Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6...'\n```\n\n### Refresh JSON Web Token\nYou can refresh token using refresh_token that was given during login.\\\nThere are two endpoints\\\nTo refresh admin token `POST /api/token/refresh` [Go to definition](#operation/tokenRefresh)\\\nTo refresh member token `POST /api/{storeCode}/token/refresh` [Go to definition](#operation/tokenRefreshMember)\n","bearerFormat":"JWT","scheme":"bearer"},"token":{"type":"apiKey","name":"X-AUTH-TOKEN","in":"header"}},"parameters":{"storeCode":{"name":"storeCode","in":"path","description":"Store code","required":true,"schema":{"type":"string"}}},"schemas":{"RedeemCouponFormType":{"required":["couponCode"],"properties":{"couponCode":{"type":"string"},"usedAt":{"type":"string","format":"date-time","nullable":true,"description":"Optional date and time the Coupon was actually used (ISO 8601, e.g. `2026-01-15T10:30:00+02:00`). Useful when importing historical Coupon usages from an external system. When omitted, the current date and time is used. Accepted from an admin principal only; a member sending this field receives 400, because the value is also what the Coupon's active window is checked against. Must not be in the future, and must fall inside the Coupon's active window when one is set."}},"type":"object"},"CouponUsageResponse":{"properties":{"code":{"type":"string"},"used":{"type":"boolean"},"customerId":{"type":"string","format":"uuid"}},"type":"object"},"ExpiredToken":{"required":["code","message"],"properties":{"code":{"type":"string"},"message":{"type":"string"}},"type":"object"},"InvalidToken":{"required":["code","message"],"properties":{"code":{"type":"string"},"message":{"type":"string"}},"type":"object"},"Unauthorized":{"required":["code","message"],"properties":{"code":{"type":"integer"},"message":{"type":"string"}},"type":"object"}},"responses":{"BadRequest":{"description":"Bad request.","content":{"application/json":{"schema":{"required":["code","message","errors"],"properties":{"code":{"type":"integer"},"message":{"type":"string"},"errors":{"type":"array","items":{"required":["message","parameters","plural","code","path"],"properties":{"message":{"type":"string"},"parameters":{},"plural":{"type":"integer","nullable":true},"code":{"type":"string"},"path":{"type":"string"}},"type":"object"}}},"type":"object"}}}},"AccessDenied":{"description":"Forbidden.","content":{"application/json":{"schema":{"required":["code","message"],"properties":{"code":{"type":"integer"},"message":{"type":"string"}},"type":"object"}}}},"NotFound":{"description":"Not found.","content":{"application/json":{"schema":{"required":["code","message"],"properties":{"code":{"type":"integer"},"message":{"type":"string"}},"type":"object"}}}},"Conflict":{"description":"Conflict — the resource is already being processed by another concurrent request.","content":{"application/json":{"schema":{"required":["code","message"],"properties":{"code":{"type":"integer"},"message":{"type":"string"}},"type":"object"}}}}}},"paths":{"/api/{storeCode}/member/{member}/reward/redeem":{"post":{"tags":["Member"],"summary":"Mark coupon as used","description":"
\nThis method allows redeeming a Coupon that is assigned to a specific Member (marks it as used by the Administrator).\n\nOptionally, the `usedAt` field can be sent to record the date and time the Coupon was actually used. When it is not provided, the current date and time is used.\n","operationId":"rewardPostRedeem","parameters":[{"name":"member","in":"path","required":true,"schema":{"type":"string","pattern":"[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}|email=[a-zA-Z0-9!#$%&'\\.*+\\-@=?^_`{|}~;]+|phone=[0-9+]+|loyaltyCardNumber=[0-9a-zA-Z\\._-]+"}},{"$ref":"#/components/parameters/storeCode"}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/RedeemCouponFormType"}}}},"responses":{"200":{"description":"Returned when successful","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CouponUsageResponse"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"401":{"description":"","content":{"application/json":{"schema":{"oneOf":[{"$ref":"#/components/schemas/ExpiredToken"},{"$ref":"#/components/schemas/InvalidToken"},{"$ref":"#/components/schemas/Unauthorized"}]}}}},"403":{"$ref":"#/components/responses/AccessDenied"},"404":{"$ref":"#/components/responses/NotFound"},"409":{"$ref":"#/components/responses/Conflict"}}}}}}
````
---
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