Resource Owner Password Grant Type Error with the /token Request: "invalid_grant": "The credentials provided were invalid"
Jun 5, 2025
API Access Management
Okta Classic Engine
Okta Identity Engine
Overview
This article explains why the /token request could cause the error below with the resource owner password grant type.
invalid_grant": "The credentials provided were invalid
Applies To
- /token request
- Resource Owner Password flow
- invalid_grant
- "The credentials provided were invalid" error
Cause
The cause of this error is that either the username or the password in the /token call's request body is incorrect or contains special characters.
Solution
Ensure that the username and password are passed correctly in the Body section of the /token request.
