I am trying to load data via talend ETL, where my Related to (whatId) is a lookup on a custom object's external id.
I am stuck, and I believe i have everything set up correctly
and my etl is setup like so
but ther error i am receiving is this
InvalidBatch : Entity type for the polymorphic foreign key reference: What didn't match the supplied type: Contact_Report__c
I checked the fields just in case I am matching string to string, so thats not it
I did not setup the objects, not sure how they got contact report (custom object) in the task lookup for what, but maybe something is missing there?
I'm pretty stumped, any and all help is greatly appreciated