PayPal Configuration Error - Security header is not valid
When testing your uWalk - PayPal setup, if you see an error message such as:
Error 10002: Security header is not valid
That error usually indicates an issue with the login information you
are using for your PayPal connection. On the uWalk PayPal
configuration UI, try removing your PayPal credentials and then
re-enter them. To make sure there are no typos or unexpected
characters/line feeds... you might want to paste your credentials into
Notepad first... then cut-n-paste them into the uWalk PayPal
configuration UI.
See uWalk and PayPal for more information about configuring the uWalk and PayPal interface.
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