> For the complete documentation index, see [llms.txt](https://integrations.impact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://integrations.impact.com/partner-api-reference/reference/identity-verification/identity-verification.md).
# Identity Verification
Endpoint for creating and resuming identity verification sessions.
## Create or Resume an Identity Verification Session
> Creates a new identity verification session or resumes an existing one. Returns a URL that can be used to launch the hosted verification flow. If a session is already in progress for the specified user, the existing session details are returned so verification can resume from where it left off.
```json
{"openapi":"3.1.0","info":{"title":"Partner Identity Verification API","version":"16"},"tags":[{"name":"Identity Verification","description":"Endpoint for creating and resuming identity verification sessions."}],"servers":[{"url":"https://api.impact.com"}],"paths":{"/Mediapartners/{AccountSID}/IdentityVerification/Session":{"post":{"operationId":"createIdentityVerificationSession","tags":["Identity Verification"],"summary":"Create or Resume an Identity Verification Session","description":"Creates a new identity verification session or resumes an existing one. Returns a URL that can be used to launch the hosted verification flow. If a session is already in progress for the specified user, the existing session details are returned so verification can resume from where it left off.\n","parameters":[{"name":"AccountSID","in":"path","required":true,"schema":{"type":"string"},"description":"Unique identifier for the partner account."}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","required":["UserId"],"properties":{"UserId":{"type":"integer","description":"The unique numeric identifier of the impact.com user to verify. This is the numeric portion of the user's ID (e.g. for user `I-5402850`, pass `5402850`)."},"CallbackUrl":{"type":"string","description":"The URL to redirect the user to after the verification session completes. If omitted, the user is redirected to the impact.com platform."}}}}}},"responses":{"200":{"description":"The identity verification session object.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/IdentityVerificationSession"}}}},"400":{"description":"Validation error or the supplied UserId is not accessible for the partner account.","content":{"application/json":{"schema":{"type":"object","properties":{"Status":{"type":"string","description":"Error status indicator."},"Message":{"type":"string","description":"Human-readable error message."},"Errors":{"description":"Validation error details. Returned as an object when validation fails or an empty array when the user lookup fails.","oneOf":[{"type":"object","properties":{"Error":{"type":"object","properties":{"Field":{"type":"string","description":"The request field that failed validation."},"Message":{"type":"string","description":"Validation failure detail for the field."}}}}},{"type":"array","items":{"type":"object"}}]}}}}}},"401":{"description":"Unauthorized — invalid authentication credentials.","content":{"application/json":{"schema":{"type":"object","properties":{"status":{"type":"integer","description":"HTTP status code."},"title":{"type":"string","description":"Short error label."}}}}}}}}}},"components":{"schemas":{"IdentityVerificationSession":{"type":"object","properties":{"Status":{"type":"string","description":"The status of the API response (e.g., OK)."},"Uri":{"type":"string","description":"API resource path for this identity verification session."},"id":{"type":"string","description":"The unique identifier for this identity verification session."},"sessionId":{"type":"string","description":"A UUID that uniquely identifies the verification session with the identity verification provider."},"sessionUrl":{"type":"string","description":"The URL to redirect the user to in order to complete the identity verification flow."},"memberId":{"type":"string","description":"The numeric portion of the impact.com user ID associated with this session."}}}}}}
```
---
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