We can not amend the Invoices that are made on past dates in Tranzact.

We have to cancel that invoice and make a new invoice, but the date appearing will be of current date.

If you want you can have the same old invoice number, for this you have to change the Document Series of invoice to Manual (In Settings Module).

Once you are done with making Invoice with old Invoice number, do not forget to change the Document series back to Auto.

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