problem 1
in the footer of the report/form put a text =Sum([feildname]) or =[feildname]+[feildname]+[feildname]
vat = (([newly added text]*.15) + [newly added text]) some like this
problem 2
question what the differance between sales form and invoice table
why just add a feild to the sales form invoice (T/F) or even beater add a invoice date feild if 'invoice date' = null then not invoice
then what i do is create a payment table which only has invoiceID, amount Paid,date paid then you can write a outter join to show how has not paid there invoices.
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hope this help
See clear as mud
StePhan McKillen
the aim is store once, not store multiple times
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