Posted - 12/12/2018 : 09:13:21
I use Paypal to process my payments. Recently I noticed the "Inform Paypal" button in the Paypal Authorization /Capture. Where can I find out how to set this up so I won't have to open Paypal to add tracking information? When I click on the button I get the following message "username / pw not set for express checkout". I have found the API Credentials page on Paypal but do not know what to set up there, if anything. Any help is appreciated.
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