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E_WC_21 User Authentication failed do to invalid authentication values

When I got this message I read all the posts on it, but then I went back to the docs:

https://developer.authorize.net/api/reference/features/acceptjs.html#Building_your_Payment_Form

This described a Client Public Key that was not yet created for the Merchant Account.

Using that key with the Merchant Name/API Login ID fixed this message for me.

marine2026
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