Error Message: Cannot insert NULL into VOLDMODSEQ

Symptoms

System DB logging throws exceptions when trying to insert module sequences or module sets. Typical error message that can be found in the log files:

2006-06-07 13:37:37:676 [VoiceObjects.VoiceServerMessage.Exception] : Database connection terminated:ORA-01400: cannot insert NULL into ("VO_SYSTEM"."VOLDMODSEQ"."MOD_SEQ_REFID")

Resolution

This error might occur when your application does not make use of Module objects or if all Module objects have the option Enable history tracking disabled.
To resolve this, add at least one root Module object to your application, which is used as the start object and make sure the option Enable history tracking is selected.

In addition you should activate System DB logging on both the server and the service. To activate changes for these settings you need to reset the server or redeploy the service respectively.