To remove a surplus invoice from Business Manager there are two options.
It may be cancelled providing that it is in an open account period and has not been fully or partially cleared, by clicking the Cancel button. An equal and opposite entry will be automatically created which will clear the original entry ie cancelling an invoice will create, and clear down, a corresponding credit note. NB If the VAT period has been closed then any VAT adjustment will be placed in the earliest open VAT period.
If the original invoice is not in a closed VAT period then full editing is available. (If it is see above). Therefore the supplier can be overwritten, as well as the heading code, enterprise, description, amount, and VAT status.