AP Document sequence update script for invoices and payments

Hello Team,

While doing the AP setups, we forgot to set up a document sequence and as a result, AP invoices and payments are created without document sequence. So is there any script available where we can update the document sequence manually?

If at all I managed to update via a script, will it cause any other issues because of the direct updates? Your thoughts are highly appreciated. Also, can you let me know what are all the tables involved that need to be updated?

Regards,

Subu