unfortunately webflow e-commerce doesn't integrate with Zapier so creating a product has to be done manually which isnt ideal if you want to create a multi-vendor marketplace. The zap i has within it a webhook that solves this issues and creates a product in webflow e-commerce. What you'd have to do with this zap is:
This should allow you to input a product into the e-commerce CMS if not what you may have to do is use postman to ascertain the correct names of your products fields
Check the Zap
https://zapier.com/shared/1c0a0cdf8192360398b8d77487f58a640fd0877c
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