I'd like to automatically create Standard Price Book entries for new products using dataloader.io. I am successfully creating the new products, using the Product Code as the ID. But when I go to create the corresponding price book entries, the upsert fails because the Product Code field on the Price Book Entry object is read-only.
I am trying to uncheck the read-only box on the Object Manager screen for Price Book Entry Fields and Relationships, but it appears hardcoded to be on. Is there a way around this problem?