Use the IBBSecurityAccess object that is part of the SessionContext. Modify the code according to what rights are needed. For example, in order to check to see if a user has rights to add constituent attributes:

Public Sub CheckUserAccess()

Dim UserID As Long
UserID = REApplication.SessionContext.CurrentUserID

 With REApplication.SessionContext.Security

 Debug.Print .AccessToConstituent(SecurityConstituent_Attributes, SpecificAccess_ADD, UserID)
 ''Check to see if user has access to Add a new constituent attribute
  If .AccessToConstituent(SecurityConstituent_Attributes, SpecificAccess_ADD, UserID) = True     Then
   'add code here
   MsgBox "User has rights to add new attribute to constituents."
   'add code here
    MsgBox "User has no rights to add new attribute to constituents."
  End If

 End With
End Sub

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