Hy,

I am trying to insert record feeds with the Apex Dataloader (through the command line) and I am not able to do this, because the mapping information for the feed items fail with this message:

ERROR com.salesforce.dataloader.action.progress.NihilistProgressAdapter  - Field mapping is invalid: MY_OBJECT__FEED.PARENTID=ParentId\:ExternalId__c

The line that fails is:

MY_OBJECT__FEED.PARENTID=ParentId\:ExternalId__c

ExternalId__c exits on MY_OBJECT__c and is an external id. So this is not the reason for the error. But strangly when I want to check the relation name by doing a getDescribe().getRelationName() on MY_OBJECT__FEED.PARENTID it returns a NULL.

???

Can anyone help with that?

Regards Robert