> For the complete documentation index, see [llms.txt](https://docs.iyzico.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.iyzico.com/en/products/mass-payout/mass-payout-integration/mass-payout-auth.md).

# Mass Payout Auth

## Auth Mass Payout

> Second step of the two-phase process. Transitions valid mass payout items from \`INIT\` to \`PROCESSING\`.\
> Messages to be processed are queued (for fund reservation/transfer). Invalid orders remain unchanged. An audit trail is recorded.<br>

```json
{"openapi":"3.0.3","info":{"title":"Mass Payout API","version":"1.0.0"},"tags":[{"name":"Mass Payout","description":"Mass payout operations"}],"servers":[{"url":"https://api.iyzipay.com","description":"Production"},{"url":"https://sandbox-api.iyzipay.com","description":"Sandbox"}],"paths":{"/v1/mass/payout/auth":{"post":{"tags":["Mass Payout"],"summary":"Auth Mass Payout","description":"Second step of the two-phase process. Transitions valid mass payout items from `INIT` to `PROCESSING`.\nMessages to be processed are queued (for fund reservation/transfer). Invalid orders remain unchanged. An audit trail is recorded.\n","parameters":[{"$ref":"#/components/parameters/AuthHeader"},{"$ref":"#/components/parameters/ContentTypeHeader"},{"$ref":"#/components/parameters/LocaleQuery"}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/MassPayoutAuthRequest"}}}},"responses":{"200":{"description":"Successful","content":{"application/json":{"schema":{"$ref":"#/components/schemas/MassPayoutAuthResponse"}}}}}}}},"components":{"parameters":{"AuthHeader":{"name":"Authorization","in":"header","required":true,"description":"Authorization header; a signed hash value that starts with **IYZWSv2** and is generated in Base64 format.","schema":{"type":"string"}},"ContentTypeHeader":{"name":"Content-Type","in":"header","required":true,"description":"Content-Type value.","schema":{"type":"string"}},"LocaleQuery":{"name":"locale","in":"query","required":true,"description":"Response language.","schema":{"type":"string","enum":["tr","en"]}}},"schemas":{"MassPayoutAuthRequest":{"type":"object","description":"Mass payout authorization request.","required":["requestId"],"properties":{"requestId":{"type":"string","description":"Correlation / tracking identifier returned from the initialization step."}}},"MassPayoutAuthResponse":{"type":"object","description":"Mass payout authorization response.","properties":{"status":{"type":"string","enum":["success","failure"]},"systemTime":{"type":"integer","description":"System time (epoch ms)."},"locale":{"type":"string","description":"Language/region setting such as `tr` or `en`."}}}}}}
```