Assigns a role to group members.
Note: This function is only relevant for site admins, and group members with group admin permissions.
The assignRole() function returns a Promise that resolves to the newly-assigned role after it has successfully been assigned. Assigning a role overrides an existing role.
For example, assigning a member role to an admin unassigns their admin role.
Group ID and member IDs.
Group member role to assign. One of:
"MEMBER": Group member."ADMIN": Group admin.Authorization options.
This method doesn’t return any custom errors, but may return standard errors. Learn more about standard Wix errors.