Special Handling of Standard Objects
The following standard objects require special handling:
Pricebook2
Every organization contains a standard Pricebook object that you cannot alter. If the source contains the Pricebook2 object, you must copy the Pricebook2 object ID to the corresponding external ID field in the target after the task creates the external ID in the target and before you run the task.
RecordTypes
You can select the RecordTypes object when you enable them at profile level for individual objects. Before you run the task, enable the required RecordTypes in the target profile.