SAP Message REB_GENERATOR221 - Deletion not possible. &1 is still in use in access sequences

Diagnosis
Deletion not possible. The condition table &v1& is still in use inaccess sequences.
A condition table is addressed by one or more access sequences when acondition is accessed. In a live environment, deleting the conditiontable would be fatal if it is still required.

System Response
The selected action cannot be performed.

Procedure
Inform your system administrator.

Procedure for System Administration
If you have deleted the condition table and the error occurred in themethod execution while a transport request was being imported, thechanges to the relevant access sequences must be contained in the samerequest or in a request imported earlier.
If the condition table really is no longer used in an access sequence,contact your support organization.