I build an app for Huawei devices in which Push Kit is implemented successfully. I published that app to App Gallery. After downloading my app from App Gallery, Push Notification is not working. But when I am running that app from my own system (directly from android studio), it is working fine.
Huawei is generating 2 SHA-256 keys, one locally. Second at App Signing module at developer account. After adding both SHA-256 keys, my issue was resolved.