User & is not assigned to user group &

What causes this issue?

On the components initial screen for maintaining and executing queries,
you specified a user group to which you are not assigned, or
You called the InfoSet Query over a menu entry and are not assigned to
the relevant user group.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You can only execute or maintain queries from user groups to which you
are already assigned. Specify a user group to which you are assigned,
or
Get your system administrator to assign you the relevant user group.

Error message extract from SAP system. Copyright SAP SE.