Hello,

Instead using the extension point and the BR behind... I prefer to use the query rule way it's very simple for the Admin/(users) to control the read access to the CSM application.

You can use the Query rule module for controlling the access for CSM application : 

 - set the value of the property to true :sn_cs_queryrules.use_query_rules

- Go to the table or module (Query rule) : sn_query_rule

- Find the line with roles ="sn_customerservice.customer"

- Update the line by adding the filter : u_visible_to_custome = true.

Hope this can help you.

BR,

Nafti