How to connect 1c and the site so that invoices are marked as paid when paying?

Question

PHP

There is a site on PHP+MySQL and 1c:Enterprise.
Invoices are issued on the site and sent in 1s.
How, upon receipt of a payment, to link the client's payment with a specific account on the site?
The 1C programmer says that the account ID is not enough, since it often does not appear in payment orders, or several payments can come from the client at the same time.
How to set up work? What data is needed for 100% confirmation that this organization pays for this account?

Answer 1

And this is the algorithm of your accounting - how they understand and consider the fact of payment of such invoices / orders
, possible additional options are the coincidence of amounts / terms of payment.
But it seems to me that bills should be cleared (posted) inside 1C, on the site it’s just synchronized already with the sign of
posting. Usually, all accountants / marketers do this - they create an invoice and if it is paid, then they post it and make an invoice out of it

Answer 2

1C programmer says account ID is not enough

Nude, in principle, is enough for a bunch.
If your accountant delivers payments to accounts, then you can upload them. If not, then ....
There is little information what kind of 1s. They have different accounting details.
But in principle, in all, to one degree or another, it is possible to link accounts to payment. Well, then upload the payment with this data.
For good, you need a network and draw a business process, how documents will move, for visualization. with the designation of key details.