I have site admin access, using http basic auth, I am able to create user and groups using REST API; however, when I try to add an user using the following POST resource /rest/api/2/group/user?groupname=personal2, and payload {"name": "userX"}, I get the following error.
{
"errorMessages": [
"Specified user does not exist or you do not have required permissions"
],
"errors": {}
}
Could anyone help me?