Create a product by following these instructions.
Ensure that you have added attributes to your product for variable pricing as this will be the pricing options for the vendors to select.
Create a Webform with the list of questions you want to ask your Vendor.
Once the Webform is created, add the product URL you created in step 1 to the redirect URL under Form Settings.
This will provide the vendor the opportunity to add the product to their cart and complete the transaction.
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