Approach to reconcile DCOGS/COGS, Revenue and GL

Organization Name (Required - If you are an Oracle Partner, please provide the organization you are logging the idea on behalf of):

Liberty Global

Description (Required):

We need to understand and clarify below points to avoid any transactions getting stuck in Costing/Receivables/GL, reconcile all transactions for smooth period closure:

1) Need to understand recommended approach to reconcile DCOGS/COGS, Revenue and GL
2) Do we need to execute "Import Revenue Lines" from beginning of time i.e. 1-Jan-2023 (from the time we went Live), last month we had issue in costing and receivables period closure.
3) Do we need to change the accounting strings of DCOGS and COGS