How can I have two files with the same title in different places?

support
7

I am working on the same project as @heyx3

What is the distinction between identifiers and title?

Here is our current front matter from two articles:

---
date: 2015-06-02T13:03:43-04:00
weight: 7
title: Notifications
menu:
  main:
    parent: integrating_ios
---

---
date: 2015-06-02T13:03:43-04:00
weight: 4
title: Notifications
menu:
  main:
    parent: integrating_ios_marmalade
---

This leads to the error in the OP:

ERROR: 2015/06/10 Two or more menu items have the same name/identifier in Menu “main”: “Notifications”.
Rename or set an unique identifier.

Is the core issue that that they sure the same grandparent menu main?