Technical question about GoDaddy Payments POS

I have my website set up through GoDaddy through their website builder. I have been using GoDaddy Payments for payments and I have been fairly satisfied.

I do get in-person transactions and those are becoming more common.

The biggest issue I am having is sales through the POS terminal (the mobile app on my ipad) doesn't update the website inventory. I have to do that manually.

Is there a better way to handle POS sales so it will update the inventory?