Spamming log error message : "sn_apm" is not defined
This is related to PRB1270330 which is supposed to be fixed in London.
It appears that this happens to instances on a later release due to prior customization of the "age" Dictionary Entry for the "cmdb_ci_business_app" Table.
We can fix this issue by reverting the changes made to the Dictionary Entry.
To do so, follow the steps below.
1. Navigate to System Definition > Dictionary
2. In the Table column search for "cmdb_ci_business_app" and in the Column Name search for "age" and go to the record
3. In the Versions related list, Right-Click the most recent record with the Source of "System Upgrades: glide-LATEST_VERSION..."
4. Select "Revert to this version"
5. Select OK when prompted
After this is done, the log errors should no longer be created.