How To Fix FMCU139 - Budget structure &1 cannot be set as a flat budget structure

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCU - Customizing for budgeting in FM

• Message number: 139

• Message text: Budget structure &1 cannot be set as a flat budget structure

What causes this issue?

The budget structure &v1& in FM area &v2& has been defined as a
multi-level budget structure in Customizing activity <DS>
<DS:SIMG.PSM_VC_FMHIESETTINGS>Define Hierarchy Settings for Account
Assignment Elements </></>, so you cannot change it to a flat budget
structure.

System Response

Processing stops.

How to fix this error?

Set budget structure &v1& for FM area &v2& as a multi-level budget
structure in Customizing activity <DS>
<DS:SIMG._ISPSFM_N_V_FMBS_BS>Create Budget Structure</></>.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message FMCU139 - Budget structure &1 cannot be set as a flat budget structure ?

  The SAP error message FMCU139 indicates that the budget structure you are trying to set cannot be configured as a flat budget structure. This typically occurs in the context of budget management within SAP, particularly in the Public Sector Management (PSM) module or in the Controlling (CO) module.
  
  Cause:
  The error can arise due to several reasons:
  
  Incorrect Configuration: The budget structure may not be configured correctly in the system. This could be due to missing or incorrect settings in the budget structure definition.
  Hierarchy Issues: The budget structure may have a hierarchical setup that does not allow it to be treated as a flat structure. A flat budget structure typically requires that all budget items are at the same level without any sub-levels.
  Dependencies: There may be dependencies or relationships with other budget structures or organizational units that prevent the current structure from being set as flat.
  Data Integrity: Existing data or transactions may conflict