Once you have enabled the Shipping Zones Region Restriction mode, the Geo Prompt Pop-up or/and the User Destination Form Widget will ask the visitor for their Country / State and/or Postal Code to adjust the available stocks accordingly. This info will be saved in a cookie named atum_location. See the cookie info below:
Cookie Name: atum_location.
Expiration Time: 1 month.
Description: Used to save the visitor's Country / State and Postal Code to adjust the shop's inventory related to the Region settings.