Functional area inconsistency while creating a PO

Hi Experts,

The problem occurs when you create a PO. When a PO is created, multiple tables are updated. I checked that the value of Functional area in below screenshot comes from table COAS which is correct.

Double click on Order:

Now, when you try to do MIGO on this PO, the Functional area comes up as EQSV. This value comes from table EKKN:

I have been told that it should be CAPX in the MIGO screen. I want a confirmation if there seems to be any issue from Functional side first as i am from ABAP.

Please help if you have any idea why this could be happening.