SAP Message REB_GENERATOR167 - Activation of scale ALV line category &1 failed

Diagnosis
Activation of scale ALV line category &v1& failed.
A scale ALV line category is a standard structure. It must fulfillcertain minimum requirements in terms of consistency before it can beactivated by the DDIC. The problem is probably due to an error in thedefinition of the scale ALV line category or a program error.

System Response
The scale ALV line category &v1& is not activated.

Procedure
Inform your system administrator.

Procedure for System Administration
Contact your support organization.