I have two system: system_one and system_two

The system_two just related to system_one so in system_one I have a custom module name custom_one and custom_two. 

custom_one: which generate a qweb file.

custom_two: which inherits the custom_one qweb file and I going to add another column and rows

And now, I'm confused bcuz when I'm looking in technical menu and I saw  that the external id for qweb in custom_one has different names in system_one and system_two like the external id of system_one is stock.history_template and in system_two it's portal.portal_archive when I upgrade the base.

This is not good cuz when I install the custom_two in system_two then I used the external id stock.history_template, it can't find the parent id likewise in system_one if I used the portal.portal_archive it returns the same error

 Does it mean i have an error?