How To Fix KU304 - Hierarchy error: Number of fields (&) exceeds maximum (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: KU - Costing: Rollup

• Message number: 304

• Message text: Hierarchy error: Number of fields (&) exceeds maximum (&)

What causes this issue?

You have entered a hierarchy whose number of levels (fields) exceeds
the maximum permissible number. The maximum number of levels is limited
to 9. This limit is set in the system and cannot be changed.

System Response

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

How to fix this error?

Limit your hierarchy to a maximum of 9 levels.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KU304 - Hierarchy error: Number of fields (&) exceeds maximum (&) ?

  The SAP error message KU304, which states "Hierarchy error: Number of fields (&) exceeds maximum (&)," typically occurs in the context of SAP's CO (Controlling) module, particularly when dealing with hierarchies in cost centers, profit centers, or other organizational structures.
  Cause:
  This error arises when the number of fields (or characteristics) defined in a hierarchy exceeds the maximum limit allowed by the system. Each hierarchy in SAP has a predefined limit on the number of fields that can be included, and if this limit is exceeded, the system will throw this error.
  Solution:
  To resolve the KU304 error, you can take the following steps:
  
  
  Review Hierarchy Configuration:
  
  Check the hierarchy configuration to see how many fields are currently included. You can do this by navigating to the relevant hierarchy in the SAP GUI and reviewing its structure.
  
  
  
  Reduce the Number of Fields:
  
  If the number of fields exceeds the maximum limit, consider removing some fields from the hierarchy. This may involve simplifying the hierarchy or breaking it down into smaller, more manageable segments.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error. SAP frequently releases updates and patches that may provide solutions or workarounds for known issues.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation for the specific module you are working with to understand the limits and best practices for configuring hierarchies.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue on your own, consider reaching out to SAP Support for assistance. They may provide insights or solutions based on your specific system configuration.
  
  
  
  Related Information:
  
  Maximum Limits: The maximum number of fields allowed in a hierarchy can vary based on the version of SAP you are using and the specific configuration of your system. It's important to refer to the official SAP documentation or consult with your SAP Basis team for the exact limits.
  Hierarchy Types: Different types of hierarchies (e.g., cost center hierarchy, profit center hierarchy) may have different configurations and limitations.
  Performance Considerations: Having too many fields in a hierarchy can not only lead to errors but may also impact system performance. It's advisable to keep hierarchies as streamlined as possible.
  
  By following these steps, you should be able to address the KU304 error and ensure that your hierarchies are configured correctly within the SAP system.