I have been trying to create my own PayPal registration forms using Dynamic Forms. After a number of hours trying to figure out why I am getting the error, "
The link you have used to enter the PayPal system is invalid. Please review the link and try again." I decided to try your demo code #17. After simply changing your email address and telling Dynamic Forms to go to test mode instead of production mode I am still getting the exact same error. The URL that is being sent to PayPal ishttps://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_xclick-subscriptions&business=mark@website51.com&cancel_return=http://www.checkmeout.com/Registration/TestForm/tabid/116/PayPalReturn/True/Payment/Cancelled/UniqueCompletionID/1600b23f-dd81-4c49-927a-0421a2c6bff8/FormModuleID/557/Default.aspx¬ify_url=http://www.checkmeout.com/Registration/TestForm/tabid/116/PayPalReturn/True/Notify/IPN/UniqueCompletionID/1600b23f-dd81-4c49-927a-0421a2c6bff8/FormModuleID/557/Default.aspx&return=http://www.checkmeout.com/Registration/TestForm/tabid/116/PayPalReturn/True/Payment/Sucess/UniqueCompletionID/1600b23f-dd81-4c49-927a-0421a2c6bff8/FormModuleID/557/Default.aspx&item_name=Premium%20Membership¤cy_code=USD&a1=0&t1=W&p1=2&a3=19.95&t3=M&p3=1&no_shipping=1&first_name=JOhn&last_name=Doe&email=john@website51.com
I have seen other postings where the URLs were malformed with spaces in them. As you can see, there are no spaces here. And after all its your code so I am confused as to why I am getting this error on both your code and mine.
Any help is appreciated.