Zapier is extremely limited in its Airtable capabilities, because it will only trigger once per record and never again for that record… so you have to be very careful about how your zap is triggered, unless you use a JavaScript scheduling hack like this one to schedule your zap on a regular basis.
However, the better, cheaper, more seamless, more anti-fragile, and more professional way of handling this would be to use the vastly superior Integromat instead, which has full Airtable support & none of the limitations of Zapier.
If you have a budget for this project and you’d like to hire an expert Airtable consultant & Registered Integromat Partner to help you with this, please feel free to contact me through my website at ScottWorld.com. I can also help you set this up in Zapier as well, if you want to do the JavaScript schedule hack.