@Nidhi Priya, Thanks for posting in Q&A. The line of Business app for android. It is only for the devices enrolled with Android device administration method. For android enterprise devices, we deploy LOB via managed google play app. Here is a link with more details:
https://learn.microsoft.com/en-us/mem/intune/apps/apps-add-android-for-work
Please check if the affected device is Android Enterprise device. If there's any update, feel free to let us know.
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