Data Migration framework - Ledger Balances

Hi Professionals, 

I am using Data Migration Framework to import --> Ledger and Vendors Balances.

I have face a problem that the system can not recognized the Ledger Dimension value as follow:

1201001-001-023

The first segment is Main account, and after that the dimensions, and give me a message: [Financial Dimension 0 does not exist] 

Please tell how import this combination.