FCM configuration - Grant permission for another Project

Configuration for forwarding Cloud Messages from Verestro FCM to Client's FCM.

1. Visit console.cloud.google.com/iam-admin
   
2. Select Grant Access 
   
   

   

   
   
3. In Assign roles section select a role from a list
   
   

   

   
   
   
4. Select option Manage roles
   
   

   

   
   
   
5. Select Create role
   
   

   

   
   
   
6. Fill title (1) and ID (2) fields, and click on Add permissions (3)
   
   

   

   
   
   
7. In Add permissions window, using filter field find cloudmessaging.messages.create value
   
   

   

   
   
   
8. Mark found permission, and add it
   
   

   

   
   
   
9. After adding permission, create the role
   
   

   

   
   
   
10. There should appear our new created role
    
    

    

    
    
    
11. Visit https://console.cloud.google.com/iam-admin/iam
    
12. Select Grant access option again
    
    

    

    
    
    
13. Input e-mail in New principals field (1) for account which will be using the new role (principal provided directly or in configuration file), and next in Assign roles section select a role (2) from a list
    
    

    

    
    
    
14. Using filter field, find new created role
    
    

    

    
    
    
15. After choosing a role, save the principal access
    
    

    

    
    
    
16. There should appear new principal with new role on the list