Assignment does not exist in menu tree

What causes this issue?

The selected transaction does not exist in the menu tree.

System Response

The transaction cannot be invoked.

How to fix this error?

Enter a transaction that exists in the menu tree or include the new
transaction in the menu tree.
You maintain the menu tree in Customizing using the transaction <DS>
<DS:TRAN.S_AUT02>S_AUT02</></>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.