I am having issue with Data Loader: Trying to use “update” providing Account Id to update custom field with fixed value. Map looks like this: ID=Id "Updated"=customObject__c Mapping for field customObject__c will be ignored since destination column is empty .

There were 1 successful updates and 0 errors. What could be the reason

  • What is the issue you're facing? Are you expecting empty value for custom field? – Ilya Lepesh Jun 7 '16 at 0:16

There is no error. The upload should work fine. You are getting the warning because the mapping for customObject__c ( which would be an optional field) hasn't been provided.

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