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paypalexpress-checkout

PayPal ignores response to instant update callback

PayPal is ignoring the response to my instant update callback.

  • I'm on sandbox
  • I'm getting the callback
  • I'm returning the exact example result in the documentation
  • ...and PayPal continues to show my default shipping fee

Here's what I return from the callback (the example response at the end of this page):

METHOD=CallbackResponse&OFFERINSURANCEOPTION=true&L_SHIPPINGOPTIONNAME0=UPS Next Day Air&L_SHIPPINGOPTIONAMOUNT0=20.00&L_TAXAMT0=2.20&L_INSURANCEAMOUNT0=1.51&L_SHIPPINGOPTIONISDEFAULT0=false&L_SHIPPINGOPTIONNAME1=UPS Express 2 Days&L_SHIPPINGOPTIONAMOUNT1=10.00&L_TAXAMT1=2.00&L_INSURANCEAMOUNT1=1.35&L_SHIPPINGOPTIONISDEFAULT1=true&L_SHIPPINGOPTIONNAME2=UPS Ground2 to 7 Days&L_SHIPPINGOPTIONAMOUNT2=9.99&L_TAXAMT2=1.99&L_INSURANCEAMOUNT2=1.28&L_SHIPPINGOPTIONISDEFAULT2=false

I've also tried a much simpler response with no change in effect:

L_SHIPPINGOPTIONAMOUNT0=20.00&OFFERINSURANCEOPTION=false&L_SHIPPINGOPTIONISDEFAULT0=true&L_SHIPPINGOPTIONNAME0=Standard+Domestic&METHOD=CallbackResponse

What could I possibly be doing wrong? I see the callback in my server log. This is baffling.

Solution

  • It seems like in the response from the above url one parameter is missing which is "L_SHIPPINGOPTIONLABEL0=somenamehere" .

    Try updating your callback script to send the above variable also in the response to the PayPal and see if that works for you .