Changing profit center from &1 to &2 is not permitted

What causes this issue?

You want to change the profit center from &V1& to &V2&. However, this is
<ZH>not</> permitted because transaction data either already exists for
the account assignment object or could exist at the time when the change
takes effect in the system. Changing the profit center in this instance
can lead to inconsistencies in Financial Accounting.
&EXAMPLES&:
There are costs on a cost center (WBS element) to which profit center A
is assigned. If the profit center in the cost center master record were
now changed to B and the costs then distributed to other cost centers,
the currently assigned profit center - that is, profit center B - would
be credited. Profit center A, however, would still have a debit posting.
There are not yet any costs on a cost center to which profit center A is
assigned. For this cost center, an additional time slice needs to be
created for a future period with profit center B. However, there is
always a chance that transaction data continues to be entered in the
cost center until the time when postings can be made to the affected
period. This can lead to similar inconsistencies as those described in
point 1.

System Response

The action is terminated.

How to fix this error?

Check what effects a change in profit center could have on the
corresponding balance sheet in Financial Accounting.
If you still want the change in profit center to be possible, you can
convert this error message into a warning message. You do this in the
IMG activity <DS:SIMG.SIMG_CFMENUORK3OBA5>Change Message Control</>
(message class <AB>FAGL_ORG_UNITS,</> message<AB>011</>).
IF &[SWITCH]FAGL_FIN_REORGANIZATION_RS& = 'X'.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

INCLUDE FAGL_R_MSG_CHANGE_PRCTR OBJECT DOKU ID TX
ENDIF.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.