What changed: Shopify POS can now recognize buyers who previously checked out at a store using Shopify Payments. When a buyer chooses to receive a digital receipt via the Shop app, email, or text, the purchase is automatically connected to a customer profile and saved to the customer list, without staff needing to ask for contact details at checkout.
Who is affected
Stores using Shopify POS and Shopify Payments that have Shopify Network Intelligence enabled in their admin settings.
What it means for your business
For businesses using Shopify POS, this means growing the customer list and reaching opted-in buyers without asking for contact details at the register.
What to do
Update your POS app to v11.17 or later, enable Shopify Network Intelligence in admin settings; if you have a buyer-facing display, update Customer View to v11.17 as well, otherwise enable customer receipt selection in the admin.
When it takes effect
Source gives no separate effective date; it states the feature is available in v11.17 of the POS app.
Source: https://changelog.shopify.com/posts/identify-more-in-store-customers-with-pos