Nada manages the Online Store sales channel only. It does not change the publication status of your products on any other channel, including POS, Google Shopping, Meta (Facebook/Instagram), Shop, or any custom sales channel you've connected.
What this means in practice:
When Nada hides a sold-out product, it unpublishes it from Online Store. Customers visiting your storefront won't see it.
The same product continues to appear on Google Shopping, your POS, Facebook, and any other connected channels exactly as before.
When the product comes back in stock, Nada republishes it to Online Store — without touching your other channels.
Your POS channel is safe. If you use Shopify POS alongside your online store, your staff can still find and sell products that Nada has hidden from the website.
Want to hide sold-out products on other channels too? See: Why is my hidden product still showing on Google, Facebook, or other channels?