How To Fix BQ400 - Reassigning commitment item & causes budget inconsistencies;See long text

BQ400 - Overview

• Message type: E = Error

• Message class: BQ - Messages for Budgeting and Planning

• Message number: 400

• Message text: Reassigning commitment item & causes budget inconsistencies;See long text

What causes this issue?

You have deactivated message control FICUSTOM150 supported by SAP for
the hierarchy maintenance of commitment items in order to be able to
reassign commitment items with budget.
You now want to reassign commitment item & to which budget values are
assigned. Note that, when commitment items with budget are reassigned,
budget inconsistencies may occur and as a result follow-on activities
are required.

How to fix this error?

You must execute the following activities after maintaining the
commitment item hierarchy:
Program run <LS>Reconstruct Budget Values</>
Program run <LS>Reconstruct Assigned Values</>
You execute these programs in the menu of Funds Management, under
<LS>Budgeting -> Former Budgeting -> Tools -> Reconstruct -> Assigned
and/or Budget </>.
If you work with revenues increasing the budget, you must also start
program run <LS>Reconstruct Multiple Revenues</> using program
<DS:RE.BPDIST06>BPDIST06</>.
For more information on message control for the hierarchy maintenance of
commitment items, see the <DS:TX.LTCUSTOM150>long text on FICUSTOM150
</>.

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

Error message extract from SAP system. Copyright SAP SE.

BQ400 - Details

• The SAP error message BQ400 indicates that there is an issue with reassigning a commitment item, which can lead to budget inconsistencies. This error typically arises in the context of budget management and financial planning within SAP, particularly in modules like Controlling (CO) or Funds Management (FM).
  
  Cause:
  The BQ400 error can occur due to several reasons, including:
  
  
  Commitment Item Mismatch: The commitment item you are trying to reassign may not be compatible with the budget structure or the budgetary control settings in place.
  
  
  Budget Availability Control: The system may detect that the reassignment of the commitment item would lead to a situation where the budget is exceeded or not properly allocated.
  
  
  Incorrect Configuration: There may be configuration issues in the budgetary control settings, such as incorrect assignment of commitment items to budget categories.
  
  
  Data Inconsistencies: There could be inconsistencies in the data related to the budget, such as missing or incorrect budget entries.
  
  
  
  Solution:
  To resolve the