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Editorial Team
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Asked: 2026-05-11T22:19:18+00:00

I need to generate invoices in large batch which will be transformed to EDI

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I need to generate invoices in large batch which will be transformed to EDI and transported to our HQ. There is an order table with all the orders coming in. At some point in the day I have to grab a set (about 1k) and generate the invoices.

  1. Where would be the best place to generate the invoice numbers? On SQL Server backend? Or grab the batch into a .NET application and then generate the invoice numbers there? The invoice numbers can be random but must not repeat (for 3-4 years). I have a max of 12 digits to play with and can be alpha numeric. Where can I find information on generating invoice numbers.

Note: While I am generating the invoices I need to compute the order totals and tax.

I would appreciate your input.

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  1. Editorial Team

    Invoice numbers may be regulated by legal demands (where I live they need to be in sequence, and I don’t think that there may be gaps in the sequence).

    You often see that the numbers include an element that will scope them in time (such as the year: 200903472). That way you minimize the risk of using the same number twice.

    You say you have ~1K invoices a day. That means that 6-figure invoice number will cover your needs. So 4-digit year followed by zero-padded 6-figure invoice number should probably get you going.

    I would probably have the database generate them to ensure that they are unique.

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