Due to a change in functionality, I have to de-connect one list (Sub-Regions L5) from its current parent list (Org L4 - Region).

I have gone through every module that has this list in its "applied to" and removed any references to its current parent list.

When I try to remove the current parent list I get an error message - "Format of mapping used for lookup doesn't match any dimension of the source."

I understand what this error means, but I can't for the life of me find the line item that is causing the problem. Usually Anaplan provides the module/line item, but this time is does not. I have checked the properties for all lists and none of them reference this list in question.

Does anyone have any hints on how to isolate the cause of this error? I am out of ideas.

Anthony