Asset Impairment - XLA_ACCOUNTING_ERRORS shows message Subledger Accounting was unable to derive an

Hello,

We are doing our first Asset Impairment.

Here are the steps I followed.

1. Set up a Cash Generating Unit.

2. Set up the Impairment Expense and Impairment Reserve account for one asset category.

    Note : I provided the entire account string consisting of all 4 segments (Entity - Cost Center - Account - Product)

              For one asset category , we set the Impairment Expense as 490.5420.781000.0000

                                                                  and accumulated impairment as 490.0000.155200.0000

We did one asset impairment belonging that the above category by manually entering an impairment loss via WebADI.

Impairment was reviewed and posted.

We then ran the Create Accounting -Assets program that ended in a warning and no output was generated.