How to cut off a duplicate request when receiving a webhook from api?

Question

PHP

Hello! I use outgoing web hooks from Bitrix24. I get the transaction fields, and write them down in Google spreadsheets. If the deal ID was recorded, then I update the line.

But I ran into such a problem, the hook works twice (BP starts another transaction change), and it turns out that the records are duplicated. Prompt simple variant how to cut off the second request? It is desirable the most primitive, I cannot use a DB and crowns.

Answer 1

Well, write the id-shniks of the processed webhooks to the file. Or per session