Hi Jan,
Good day,
This is Cam from NetSuite Support and this is to acknowledge the receipt of your case.
Per checking, this error is usually encountered when Account type of the Account used in the Origin and Destination Transfer Account is an Intecompany Accounts Receivable or Intercompany Accounts Payable type.
Currently, the bundle will not allow you to create an Asset Transfer using the above Account Types. This is because a Journal Entry will be created when the Asset Transfer is completed and Intercompany accounts requires Intercompany Vendor/Intercompany Customer associated to the journal.
What we can do is to use other accounts for the transfer except for these types of account. If you want to do elimination, you may manually do an intercompany elimination journal entry.
Enhancement 224057 has been logged to request for the Intercompany functionality to be applied to Asset Transfers.What we can do for now is to attach this case to the enhancement to have this case count as a vote for the requested feature and I will be sending you a separate email for the enhancement details.