Hi Leslie,
Thanks again for the response. The transactions are entered as SOP Invoices & Credit Notes. This integration is actually a consolidation exercise, we are running branches as GP companies then we consolidate the customer information into the corporate 'GP Company'. We retain accounting principals so we reverse the transaction in the branch company (clearing the debtor account) and then we re-create the document in the consolidation company. I will have a look at 'Company Data Archive' thanks. No 3rd party modules involved here, thank fully.