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Using the Zapier POST webhook app to tag a contact in Sendlane when they buy. I have connected Zapier with my Sendlane account and it test ok. How do I use that connection in my POST webhook? When I test the webhook it is not allowed access to Sendlane. I tried adding my sendlane username and pw to the basic auth field separated with the pipe (|) with and without a space and still no access.

Hi @CoffeeGimp 

Good question.

Please post screenshots with how your Zap step is configured so we can have more context, thanks.