This error is occurring, when entry is made into the activity log.Even though this doesn’t impact your processing, you should be able to notice that, the activity log is blank, for the process.
One way to identify and address this issue, is to verify the foreign key constraints on activitylog table and figure out the discrepancy. You can do this by comparing the existing constraints with the scripts you used to create TN DB tables.
If this method is cumbersome, provide the error details to your DBA, along with the TN DB script, they should fix it for you.
#B2B-Integration#webMethods#Integration-Server-and-ESB