Signature Mismatch

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  • If you are receiving this error on your checkout page with Shopify after clicking on Complete Order, {“status”:”error”,”errorMessage”:”Signature mismatch for data coming from Shopify!”}
  • This should be a fairly easy fix.
    • You will need to use the username and password we sent you from Pinwheel welcome email.
    • Login to Shopify, Click settings, then payment provider, Click on Manage, and delete the data that you have in there and re-paste the Pinwheel username and password, save, and try your transaction again. If you get to the screen to enter your credit card number, than you are all set and ready to process LIVE.
  • If you get the same error, repeat again and save. 
  • The key is to make sure you are copying and pasting exactly, no extra blank spaces, these extra spaces are pasted into Shopify and will cause this error.