As such, any new signing certificates should be maintained for app upgrades. App upgrade scenarios will be broken if your app is signed with a different certificate than the one the app is built with. If the app has been deployed previously with a different signing certificate, the app can't be uploaded to Intune after upgrade. If the previous signing certificate cannot be used, or the app has not been deployed before, you may create a new signing certificate by following the instructions in the Android Developer Guide. In certain organizations, this may require working with whoever owns the keystore information (ie. If possible, the signing information that was already used during the build process should be used during wrapping. Wrapped apps can be signed after wrapping using your existing signing tools (any signing information in the app before wrapping is discarded). Reusing signing certificates and wrapping appsĪndroid requires that all apps must be signed by a valid certificate in order to be installed on Android devices.
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