September 16, 201015 yr Hi, welcome to FM Forums! You are missing two tables that I can see - LineItems and Products. You shouldn't have multiple fields for Check #, Bal Due, Quantities Ordered and Quantities Received and so forth. Same with all of your 'replace' fields ... they should be records. Here is an example of proper invoice/lineitems/customer/products structure: Invoice demo from Comment Here's a basic rule in normalization ... any time you see several 'like' fields within a table, it usually is a sign that it should be split into another related table. :smile2:
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