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- NNNNNN is a number starting at 000001 and incrementing independently for each Bill Source. Each invoice source has its own available set of numbers. For example, the first IMOS - Freight Invoice will be 000001FINV while the first Miscellaneous Revenue will be 000001VREV.
- SSSS is the four-letter Bill Source of the invoice.
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- In general, an invoice cannot be saved if it has the same invoice number as another invoice for the same vendor.
- IMOS will check against Operations invoices, which are invoices that are status Pending, Actual, or Posted.
- When an AP invoice is set to status Actual on the Voyage Other Revenue/Expenses form, IMOS will check if the invoice number is already in use for the vendor.
- If an invoice number is manually entered on the IMOS - Profit Share Distribution form, IMOS will check if the invoice number is already in use for the vendor when the user clicks
. - When an AP invoice is entered directly on the IMOS - Transaction Data Entry form, IMOS will check if the invoice number is already in use for the vendor when the user clicks
. - When any AP or AR invoice reaches Posting stage, IMOS will check if that invoice number is already in use for that vendor when the user clicks .
- When an invoice is reversed, a new Invoice Number is generated:
- For AR invoices, that is the next number in the available set.
- For AP invoices, by default, -R is appended to the invoice number to make it unique (controlled by configuration flag CFGAppendRToReversalInvoiceNumber).
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- In general, an invoice cannot be posted if another posted invoice with the same invoice number for the same vendor already exists.
- When an invoice is entered directly on the IMOS - Transaction Data Entry form, IMOS will check if the invoice number is already in use for the vendor when the user clicks .
- When an invoice reaches Posting stage, IMOS will check if that invoice number is already in use for that vendor when the user clicks .
- When an invoice is reversed, a new Invoice Number is generated that is the next number in the sequence (depending on whether you are using default numbering or numbering by company).
- If the Invoice Number is manually entered (as is the case in the default AP numbering scheme), -R is appended to the invoice number to make it unique.
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In addition to the default numbering scheme and company-based numbering, a third option is available for controlling invoice numbers: IMOS - Document Numbers. Document Numbers are enabled by setting CFGEnableDocumentNumbers to Y. Document Numbers enable you to automatically generate invoice numbers based on a user-defined pattern, instead of an IMOS-defined pattern. Much of the functionality around the Document Numbers setup form is explained on the Document Numbers page; this page focuses on the impact of those configurations.
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