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Santhosh SSanthosh S 

Can we perform upsert from ant script to load data with salesforce record id without using externalIdField field.

Hi All,

I am using Ant Script with data loader, i have data with record id and i am trying to upsert data but using the below document i can see loader_params should have externalIdField to upsert but in my case i don't have external id field. Any one tried update or upsert with record Id?