How to update data in CRM via API?

Question

Bitrix24

We set the task to monitor paid Transactions (enter the date and amount of payment)
Created an outgoing webhook to update the transaction.
During saving, the data is sent to the handler:

1. We get the transaction ID
2. We look at the payment in the bank's API
3. We register the amount in the transaction.

There are no problems so far. BUT
In order for this algorithm to work, you need to open a deal, save the information and press F5 to see the changes. This is extremely inconvenient.
Advise how else it is possible to implement such synchronization?

Answer 1

I have a case when I needed to track the transition of a postal ticket to the final status blog.bedrosova.ru/bitrix24-soap-post-tracking - try to monitor your bank payment by analogy.