Thursday, September 26, 2013

PayPal PDT auth parameter

PayPal PDT auth parameter

I'm setting up PayPal PDT and IPN for a subscription/recurring payment
button.
I'm using PayPal's documentation to explain the returned parameters, but
one of them is not mentioned.
The auth parameter is ~87 characters long and looks like this:
AHJkv4ukrM7kwTPe7tt9Q.TPnHnUeQWJyNz4WQsMOKhYrZoaPknmceOp-G.voqTJ2V0ODJYC2u1maUdxl9-iBkg
What is this parameter? and how can I use it?

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