Update error-codes.mdx

Author: clairekinde11

src/content/docs/get-started/guides/error-codes.mdx

@@ -135,6 +135,7 @@ Description
 
 Description
 - Error configuring SAML provider
+This error also appears if a user tries to sign in to your app via their identity provider setup (IdP-initiated) and not the sign in via the enterprise connection in your app, which is supported by Kinde as service provider (SP-initiated).
 
 Troubleshooting
 - Check that the settings in the Kinde enterprise connection are correct