Starting New Invoice Series (Prefix Format) After Prior E-Invoice Submission

Hello,

Previously, we were using numeric serials for our invoices (e.g., 1, 2, 3 … 24568) as all invoices were published from one device.

Now, we have updated our system so that each branch can publish invoices with its own prefix, for example:

GG-INV-1, GG-INV-2, GG-INV-3, GG-CR-1, GG-CR-2  
BD-INV-1, BD-INV-2, BD-INV-3, BD-CR-1, BD-CR-2


However, before applying this new format, we had already published one invoice and one credit note using the format:

GG-1 and GG-CR-1


Now we want to start using the new format from:

GG-INV-1 for invoices and GG-CR-20 for credit notes.


My question is:

  • Is it acceptable to ignore the two previously published documents “GG-1” and “GG-CR-1” (which were the first submissions under the new CSID) and start using the new serial format from now (GG-INV-2, GG-CR-20)?

Kindly advise on the correct approach to ensure ZATCA compliance.

Thank you.