How do you want to update data in custtrans? When you upload ledgerjournaltrans having data for account type customer and when ypu post it, it will definitely update custtrans.
As u say ur right, But if it doesnt update in CustTrans means what could be the problem.
Because at the time of calculating the "Periodic Balances " only we came to know that it doesnt update in CustTrans . (At the time of uploading the opening balances two AOS’s were there)
I guess using ledgerjournaltrans template, you only imported the journal lines and the account type or offset account type is customer… Right?
After that if you have posted transactions and you haven’t changed anything in posting classes, then cust trans will definitely be updated with transactions. Cust trans is not updated when you upload data, but at time of posting.