Error when executing migo transaction

Hi Experts,

When executing the migo transaction i get the following error :

Meldingsnr. M8147

Diagnosis

The system did not find an account for this transaction. This means that the account determination for key LUM GBB 1000 BSA 1000 is not maintained in MM Customizing (Valuation). The key is made up of:

Chart of account

Transaction key (= Posting transaction)

Valuation grouping code

Account grouping code

Valuation class

System Response

The system cannot update a G/L account for this transaction. You cannot post the transaction.

Can someone help me to solve this problem?

Thanks.