Accessing Custom Permission from Managed Package

Question

I'm trying to check the User assigned Custom Permission from a Managed Package. The Custom Permission and the Permission Set are not part of the package, but in the subscribers Org.

Currently I'm trying to use the FeatureManagement.checkPermission(), but seems that the package can't access to the Custom Permission record. The call inside the package returns False, when instead made from out of package (execute anonymous) the return value is True.

To be clearer, an example of code I'm running:

//execute anonymous
System.debug(NS.MyClass.customPermissionMethod('myCustomPermission')); //return false
System.debug(FeatureManagement.checkPermission('myCustomPermission')); //return true


//Managed Package Class    
global class MyClass {
    global static boolean customPermissionMethod(value) {
        return FeatureManagement.checkPermission(value);
    }
}

I have not found anything on the documentation that spoke of this specific case, has it ever happened to you?

Answer 1

Salesforce support told us that this is an error in the documentation, which they will correct. The "checkPermission" method inside a managed package will only be able to verify the custom permissions of the package itself. To get around this, you need to implement the "workaround" solution with 2 queries.

I don't fully agree with this choice/answer, but that's it.

Answer 2

Another solution to this limitation of the platform would be to query the permission table with SOQL, as in this question. You can query the SetupEntityAccess table or, more directly, the PermissionSet table alongside the PermissionSetAssignment (to check which permission set was assigned to which user).