SAP Message REB_GENERATOR122 - Customizing error: Usage &1 not set up

Diagnosis
Usage &v1& has not been set up.
This means that there is an error in Customizing. This may be caused bya missing entry in table /SAPCND/T681V or, if the entry exists,inconsistent or missing field contents.

System Response
The selected action cannot be performed.

Procedure
Inform your system administrator.

Procedure for System Administration

Customer
Contact your support organization.

Developer
If you set up the usage, check whether the relevant entry in table/SAPCND/T681V is consistent and make the necessary corrections.