A customer or vendor payment was posted wrongly in Business Central: wrong amount, wrong bank, posted twice, or it never happened at all. Now you need to undo it without messing up the vendor balance, the bank reconciliation, or a month that Finance has already closed. Quick answer Payment's month still open → Reverse Transaction from General Ledger Entries. BC reverses everything on the original date. (Method 1) Payment's month already closed → post a reversal journal dated in the current month, then apply it to the original payment. (Method 2) Either way: unapply the payment from its invoice first, and clear the two bank entries in your next bank reconciliation. First, do you really need to reverse? Reversing is for a payment that is wrong as a whole. Smaller mistakes have a cleaner fix: What's wrong Best fix Only the dimension (e.g. wrong department) Correct Dimensions on General Ledger Entries. Nothing is reversed. Wrong vendor or customer...
Answers to the Business Central questions I'm asked most — month-end, fixed assets, dimensions, and the ones that stop you posting. New here? Open Start Here in the menu above.