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I am new to Zapier.  I’ve inherited an existing Zap that integrates order data from SamCart to a local database.  I have added a custom query string parameter to the SamCart orders that I would like to access from the existing Zap Action but the only options I see when adding SamCart fields to the JSON data are the built in UTM parameters.  How can I access the Custom Parameter I created?

I’ve been told no by Zapier support.

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