Having issues with your .JSON Key? The most common problem with updating your app is when Honeycommb doesn't have the right permissions within your Google Play account. Here are some items to check for.
1. Permissions Aren't Granted
After creating a Service Account for Honeycommb, Open the Google Play Console and navigate to API Access, under Setup. Under Credentials, make sure there is a honeycommb@ service account with Admin (all permissions) permissions granted.
Click Manage Play Console Permissions
Make sure Admin (all permissions) is selected with no expiry date. Click Invite user
Note: If you need to create a Service Account for Honeycommb, click here and select your Android Developer cloud project. Click Create Service Account -
Service Account name: honeycommb
Click - Create User
Select A Role - type in "Service Account User"
Click - Continue
Click - Done
Now you need to Create a JSON Key for this service account, and email Success@honeycommb.com your JSON Key - More Steps here
2. Wrong Permissions Granted
After creating a Service Account for Honeycommb, Open the Google Play Console and navigate to Settings -> API access. Under Service Accounts, if you see View access next to the firstname.lastname@example.org service account, click it
Under Account permissions, make sure that Admin (all permissions) is selected and that the expiry date checkbox is not checked. Click Save changes