Why did Paypal start sending IPN notifications many times?

A

abbrakadabbra2016-09-07 23:31:59

PayPal

abbrakadabbra, 2016-09-07 23:31:59

Something has happened to the notifications that Paypal sends to our php listener. Notifications come many times (we looked at the logs) and because of this, duplicates are created in the database. Has anyone encountered such a problem and how can it be solved? Thank you!

Reply

Answer the question

In order to leave comments, you need to log in

3 answer(s)

A

Alexey, 2016-09-07
@abbrakadabbra

Well, to the heap to the above - check your scripts, there is a chance that they started to issue something in response that is not what PayPal expects - 500, 404, php_error, BOM, etc.
You can check by the logs - either error_log or the length of the responses in the access_log (whether the responses have become longer than usual).
This is all relevant if PayPal has not changed its api and does not expect something different from your scripts.

E

evnuh, 2016-09-07
@evnuh

And according to the documentation, do they guarantee that they will call you only once?

X

xmoonlight, 2016-09-07
@xmoonlight

Unique transaction ID and no problem.