All the cost centers updates must be processed through the Finance Workflow , even if for any specific reason it is requested through other channel (Service One / email), the Data User must open a workflow to register and process the request.
The only exception is to update the "standard hierarchy" of the cost center, when it has more than 1 interval period (valid date fields). In this case it is technically required to process the update manually (the "standard hierarchy" field must be linked with the entire validity period of the cost center).
It's not possible to change the business area field during a fiscal year once there are already postings or planned postings in that fiscal year (business area is only used in PF1).
You can check below an example of a cost center manual update, in this case, change the field "Description":
STEP 1
In order to process a manual update of the cost center description, you must log in English. For other changes you can log in your language but it is highly recommended to always log in English.
Start the transaction using the menu path or transaction code 
Change cost center: Initial Screen
Make sure that you are in the right controlling area
STEP 2
Enter the code of the cost center you want to update
and 
STEP 3
Select the period by clicking on 
STEP 4
Enter the validity date of the change and click on 
Important
The "Valid from" must always be the 1 st day of the month
Specifically for the field "Hierarchy area" (node of the Standard Hierarchy), the update can only be done for the full validity period of the cost center
This means that 2 situations can occur:
»If the cost center only has one validity period, it is possible to do this update through the Finance Workflow
»If the cost center has more than one validity period, the update must be done manually through transaction KS02
Same steps described but when you get to the period selection, change the Valid from to the first one chronological listed
STEP 5
Perform the change and s ave the cost center by clicking 
STEP 6
If you want to update the description in another language, you must log in the language requested
