Specifies the Proof Key for Code Exchange (PKCE) Verifier used during the OAuth 2.0 PKCE authentication flow. It is used as input when calling GetOAuthAccessToken . This random value is required when obtaining an access token from the authorization server after the initial authorization code is provided.

Data Type

string

Default Value

""

Remarks

Use PKCEVerifier when integrating with external Identity Providers (IdPs) that support PKCE, such as Azure AD, Okta, or Google Identity.

The PKCEVerifier is usually derived from the GetOAuthAuthorizationUrl call.