The MSKgestion beta is invitation-only. Use only the official MSKconnecT page or the channel identified in your invitation for this device.
For Google Play or TestFlight, use the invited account and install through the store. These links do not download a separate APK or require allowing an unknown source.
After installation, open MSKgestion from your home screen, create your business profile, then add your first products before recording sales.
If no access is available for your device, contact support. Do not install an APK shared by message or found on another website.