The synchronize to IAM was failed on the step “Synchronizing: tab_prefilter”. How can I find out the problem?

The synchronize to IAM was failed on the step “Synchronizing: tab_prefilter”. How can I find out the problem?
Best answer by Dennis van Leeuwen
The error in the Indicium log seems to confirm your suspicion.
[ERR] Process action "run_sync_script" in process flow "system_flow_sync_to_iam" in application 21 threw an exception. (dedd009e)
Indicium.Shared.TSF.NonFatalDbException: Cannot insert the value NULL into column 'tab_prefilter_id', table 'AMBER_IAM.dbo.usr_pref_model_tab_prefilter_status'; column does not allow nulls. UPDATE fails.
The statement has been terminated.
I have manually added the prefilter again with the same tab_prefilter_id as before and converted it to "Off hidden". Problem solved!
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