Getting invalid grant

“error”: “invalid_grant”,
“error_description”: “Invalid user credentials”

This is your second post of the same content. If you want help from this forum, please post the full request you are making, the complete configuration of your instance, and what exactly you are trying to achieve (and maybe a “hello” and “please”). Throwing a fragment with zero context into a message and repeatedly posting it is a great way to get ignored.