Merge pull request #212092 from MicrosoftGuyJFlo/patch-4

Update reference-aadsts-error-codes.md

Author: prmerger-automator[bot]

articles/active-directory/develop/reference-aadsts-error-codes.md

@@ -348,6 +348,7 @@ The `error` field has several possible values - review the protocol documentatio
 | AADSTS700022 | InvalidMultipleResourcesScope - The provided value for the input parameter scope isn't valid because it contains more than one resource. |
 | AADSTS700023 | InvalidResourcelessScope - The provided value for the input parameter scope isn't valid when request an access token. |
 | AADSTS7000215 | Invalid client secret is provided. Developer error - the app is attempting to sign in without the necessary or correct authentication parameters.|
+| AADSTS7000218 | The request body must contain the following parameter: 'client_assertion' or 'client_secret'. |
 | AADSTS7000222 | InvalidClientSecretExpiredKeysProvided - The provided client secret keys are expired. Visit the Azure portal to create new keys for your app, or consider using certificate credentials for added security: [https://aka.ms/certCreds](./active-directory-certificate-credentials.md) |
 | AADSTS700005 | InvalidGrantRedeemAgainstWrongTenant - Provided Authorization Code is intended to use against other tenant, thus rejected. OAuth2 Authorization Code must be redeemed against same tenant it was acquired for (/common or /{tenant-ID} as appropriate) |
 | AADSTS1000000 | UserNotBoundError - The Bind API requires the Azure AD user to also authenticate with an external IDP, which hasn't happened yet. |