Group Currency update for existing open items

[Former Member]

Intially defined the Company Code Currency as INR

Transactions are posted for last 2 years

Noe Requirement is to define Group Currency as an addtional currency.

We have define Group Currency as USD now the system is postings with Group Currency and C.ocde Currency for new transactions.

But we need help how to populate group currency amounts for existed open items

Thanks

[Former Member]

Amount in a document is never modifiable. I think there is no way we can populate the group currency for the old documents.