OGM calculation
Under the tab OGM calculation you can determine in which way the OGM number will be created for the invoices and for sales at the payment terminal.
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An OGM structure always has 12 numerical positions (10 positions with meaning and 2 positions for a control number). Using the key, you can determine the structure of the OGM number.
Warning
Make sure that the structure of the OGM number is as such that no double OGM number can be generated. The more different parameters you use for the construction of the OGM number, the smaller the chance that double numbers will be generated.
Using the Customer code (K) in the OGM number, is only useful if the customer codes exist of numbers only. Letters and other characters than numbers are in fact not allowed in an OGM number.