SAP Message BEF_CUSTOMIZING617 - No key was entered for container &1

Diagnosis
In most cases, a database table is generated for a container defined inthe metadata. A primary key must also be defined for this in themetadata, in order that it can be created correctly.
At least one structure that should be included in the database tableshould be marked as a key in the metadatatable BEFM_CONTSTI. This is notthe case with this container.

System Response
The application cannot be generated with this status.

Procedure for System Administration
Select the primary key for the database table for customer-definedcontainers.