[POS]: `session.getSessionToken` returns `null` on some devices (iPad)

[faouzioudouh]

Please list the package(s) involved in the issue, and include the version you are using

• @shopify/ui-extensions-react/point-of-sale version 2024.10.0

Describe the bug

The merchant has 5 locations, and the session.getSessionToken() method works correctly at 3 locations. However, at the other 2 locations, it consistently returns null.

      const token = await session.getSessionToken();

      const response = await fetch(urlString, {
          headers: { Authorization: `Bearer ${token}` },
      });

Interestingly, when accessing the 2 problematic locations on a different device, everything works as expected, suggesting the issue may be device-specific.

What we have tried:

• Reinstalled the POS app on the affected iPads.
• Removed and re-added the extensions from the smart grid.
• Created a minimal smart grid setup with only our app extensions.
• Tested with different POS staff PINs that have full permissions.

Questions:

• Under what conditions does session.getSessionToken() return null?
• Are there any specific device configurations or iPadOS version requirements (currently running iOS 18) for using POS extensions?

[adearriba-fik]

Same issue on my end