I don't have any problem with the way Adagio handles the fiscal periods and payables. I like that you can enter the actual date of an invoice and have it go into the next fiscal period if the one it applies to is closed.

We run a report when we want to close payables for the month and balance that with the ledger. After that when retrieving the payables into the general ledger we change from choosing the fiscal period by the date of the invoice to using the current period. Then at the start of the next month we change it to choose the fiscal period by the date.

In our case the AP clerk is the one going into the general ledger and doing the retrieval. So we're not changing anything in a "closed" period in the ledger anyway, and I'm not that concerned about it if we have to run any payables reports after the close either because we know it balanced.