In R12, we want that the ACCOUNT (Unearned Revenue) doesn't display in the distributions lines. How

In R12, we want that the ACCOUNT (Unearned Revenue) doesn't display in the distributions lines. How to set?

According to the solution in question [2914452 ] in Community as follows:

The UNEARN account appear because you are creating Invoices with Invoicing and Accounting Rules.

If you remove Invoicing and Accounting rules from your OM Transaction type, UNEARN account won't appear.

There will be on REC, REV and TAX rows.

I remove Invoicing and Accounting rules from OM Transaction type. But the error encountered when do AutoInvoice. And the error information is [Errors:   1) Please supply both an invoicing rule and an accounting rule for this invoice.]