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I get an error in Paypal Express formAsked by eventiAGC on March 15, 2017 at 08:17 AM
Hi, I can't be able to set up payments via PayPal Express. I get this error
[PayPal Express Error]
-An error has occurred. Please contact form administrator for assistance.
[Transaction refused because of an invalid argument. See additional error messages for details.]
Username API, Password API and API signature are correct.
I don't find where is my error.
Thank you for your help
My mistake to check digital good.