https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0860921
[CMDB-IRE] When we move the non-existing columns to the reconciliation engine (using updates sets)...
When we move the update set with the invalid columns (columns that do not exist) to the target instance then the reconciliation rules fail OR showing the...
we movenon existingreconciliation enginecmdbire