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Monday, January 30, 2012

Error message 4000 from paypal:

Recently I worked with paypal integration..When sending synchronization request, if you got an error message number 4000.

Its denote that you crossed limitation sending request for the particular transaction ID..
For an every transaction id paypal send synchronization request only five times.

Note: For security reasons, PayPal will only allow you to use the transaction id to get a response up to 5 times. After that it will be invalidated and you will get an error back instead of the transaction data. Fair enough for regular use, but found it a bit annoying while developing since it took some tries to get the result I wanted :P


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