Microsoft Store Path

Store MSIX is the default public release path for new WinUI 3 apps in this lab.

Flow

Reserve app identity
  -> build MSIX package
  -> run Windows App Certification Kit
  -> prepare listing assets and privacy policy
  -> upload package in Partner Center
  -> certification
  -> Store release and updates

App-Specific Work

The existing Store account does not remove these tasks:

• Package identity.
• App name reservation.
• Store listing copy.
• Screenshots and logos.
• Age ratings.
• Privacy policy if personal data is collected or transmitted.
• Support/contact details.
• Restricted capability declarations.
• Certification notes.
• Package versioning.
• Release timing and rollout choice.

Signing

MSIX packages submitted to the Store are re-signed by Microsoft after certification. Do not buy a code signing certificate just for a Store MSIX path unless another distribution path also needs it.

Dry-Run Discipline

Before accessing Partner Center, produce:

Package artifact:
WACK result:
Manifest identity:
Privacy policy status:
Restricted capabilities:
Screenshots/logos status:
Known certification risks: