When adding a new payment line, using the wizard, or making Index recalculations, the current schedules are saved as historic schedules. This makes it impossible to reconcile historic periods, GL vs any report. My solution is to create an report that used the historic versions, to be able to reconcile the GL with the asset leasing module.

In addition, I think it should not be possible to update unposted periods. If the customer has not made any postings for December 2024, then it should not be possible to make any revaluation, or index recalculation. My customer has waited with making the postings, and then we made an index revaluation, or payment schedule update, the historic periods are saved in another version.