Did some testing.....
We close a WO using WO-J, a journal entry is made and an amount is debit to the WIP Variance Account
We reopen the WO then do finish production.
reopen the WO, undo finish production.
The journal entries are not reverse. but the Work in Progress is debit again (this is good)
then we made a journal entry: credit WIP Variance and debit Finish Goods.
04/27/1 097 53411 600565- 1 Close WO - WIP Varia 5085 UMC WIP VARIANCE EXPENSE 4,127.3
04/27/1 097 53411 600565- 1 Close WO - WIP Varia 1355 UNI WORK IN PROGRESS (DB 4,127.3
04/27/1 097 53411 600565- 1 Receipt from WO Back 1360 UNI FINISHED GOODS (DBA) 4,127.3
04/27/1 097 53411 600565- 1 Receipt from WO Back 1355 UNI WORK IN PROGRESS (DB 4,127.3
GL is ok, Inventory is OK.
soo, if a wo is close by mistake , reopen it then do a reverse jornal entry. No need to mess up with finish production.
sorry for the wrong advice