Integromat - Saving Gmail attachment to Airtable


Hi! looking for help using Integromat - i’ve been trying to use Gmail Watch function and extract the attachment to Airtable but couldn’t get it working.
What should I choose ? just click “choose” and select the attachment doesn’t seem to work. If I click Map and then add item, what should I select in the file URL? I selecting the attachment but it doesn’t work either.

Thank you for any advice!