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Failure: Related External ID: Cannot lookup a property on a null value, Reason: Value referenced in the sub-expression

NAl
Contributor

Hi all,

I am trying to conduct an upsert operation on a child record in Salesforce.
I have defined the External ID for the record and the related object but keep receiving this message:

Failure: Related External ID: Cannot lookup a property on a null value, Reason: Value referenced in the sub-expression

The null-safe access has been checked in each of the mapper snaps.

10 REPLIES 10

rohitdhiman
New Contributor

I also faced a similar issue, the issue is with the value “$” in External-ID field, in real it is expecting the name of the object against you want to do upsert , so no the value ,