Question

What do you mean by coalesce in ServiceNow?

Answer 1

Coalesce is a property of a field that we use in transform map field mapping. When we set the coalesce as true for a field mapping it signifies that this field will work as unique key.If a field match is found with the coalesce field, then the existing record will be updated with the imported information in target table else a new record will be inserted into the target table

Answer 2

The field property that is used in transform map field mapping is known as Coalesce. Coalescing on a field allows you to use that field as a unique key. The existing record will get updated with the imported information if a match with the coalesce field is found. If you can’t find a match, then insertion of a new record into the database will take place.