Our accounts are completed to 31/12/22 and the fixed assets are entered in total in the GL accounts ie Cost and Depreciation. The Detail of the individual fixed assets has been maintained in an excel spreadsheet. 

I am entering the original cost and accumulated depreciation into Odoo 13 pending upgrade to Odoo16. However, I cant see a way to enter the asset except to enter it at the original acquisition date (sometime prior to 31/12/22) and depreciate it for the whole periodnof ownership. That get the accumulated depreciation right but it posts into periods that should be closed as additional depreciation in that period 

So if this is the only way then I also need a journal to credit previous years depreciation and debit accumulated prior year profits. But that cant be right as it leaves the p[rior year (pre 31/12/22) accounts with a debit in prior years P &L so it won't agree with the published 31/12/22 accounts.

What am I missing and how do I enter these assets and accumulated depreciation