Hello,

I am working on a mule flow that use a salesforce connector.

My question is that how to define a lookup relationship when using this connector when doing a bulk upsert (job list in Bulk Data Load Jobs)

The salesforce connector is using the https://test.salesforce.com/services/Soap/u/28.0 api.
My problem is that on my object I have a lookup and the upsert is working only if I use for this field the sfObjectId of the lookup object.

I would like to be able to use the externalId of my lookup object instead, but can't find the correct xml expression for it.