PayPal IPN simulator - how to generate INVALID response? -


i'm using paypal ipn simulator test changes. i'm trying generate invalid response.

i select

transaction type: cart checkout

payment_status: denied, failed or expired.

however of these generate notification call response verified

update didn't read close enough. documentation says: paypal sends single word back, either verified if message originated paypal or invalid if there discrepancy sent. if browse ipn url directly, invalid response paypal because call ipn did not originate paypal.

regarding update: close, not exactly.

ipn return verified or invalid depending on whether or not recognizes post data you're sending having originated paypal.
yes, if browse ipn url directly , directly post's no data / dummy data paypal, yes, won't recognize having originated , we'll return invalid.

for example, link return invalid: https://www.paypal.com/cgi-bin/webscr?cmd=_notify-validate&dummy_data=true


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