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Sequential numbering for Supplier Invoicing -Italy

In Italy,  as per legal requirement the invoices and credit memos must be reported in a sequential numbering format.

The official  document number (ODN) assigned to  such documents must be consecutive without gaps. Earlier, the document number was generated on save of invoices but the posting was allowed only if the previous documents were posted..

To make the posting simpler a new sequential document number field is introduced . Now the  official document number is generated  on posting of invoices  based on the numbering configuration in the business configuration work center and is displayed in the new sequential document number field.

With this new change, the number generated on save of invoices is a global number  which will be used only for reference purposes  and won’t be considered official number hence forth.

The incoming VAT returns for Italy will also reflect the ODN number as per the new sequential document number.


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      Author's profile photo Vito Acquavi
      Vito Acquavi



      I am working on a project pertaining the ODN in Italy. Ia m not sure as to how it works and was hoping to get some tips.

      Do I need a different sequential no. for both purchases and sales invoice and credit notes; and for purchases and sales?

      Do I need different sequential number for all vat books and doc types?