How can I make the payment id unique?

Question

1C-Bitrix

Good afternoon, is it possible to implement this and how best to do it?
I have two sites, the data is uploaded to one retailCRM. The first site works correctly, but in the second, the reverse upload to the site does not occur, it gives an error. Technical support unsubscribed as follows: the payment id must be unique (different from the main store). Can I change the ID in the admin panel or do I need to edit the code?

Answer 1

The payment ID must be unique, but does not have to be numeric.
For two sites, it makes sense to simply add the prefix of the desired site to the number when uploading.
https://help.retailcrm.ru/Users/SettingsPage#n1