How to collect project costs from different cost centers

Summary:

BELOW is the project hierarchy

Business Unit>Line of Business> Cost center/department(say SALES, ADMIN, etc.)

Projects will be created under department.

We have the below requirement

Project X should be able to collect costs from two cost centers SALES, ADMIN

for Ex: 80% costs under cost center SALES

20% costs under cost center ADMIN

How to achieve this in Costing? where should be project X defined in which cost center?

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