How To Fix RH228 - Hierarchy &1 contains more than 1 million entries

SAP Error Message - Details

• Message type: E = Error

• Message class: RH - BW: Hierarchies ( basic functions )

• Message number: 228

• Message text: Hierarchy &1 contains more than 1 million entries

What causes this issue?

The internal display of hierarchy &V1& for characteristic &V2& contains
&V3& entries. This can cause performance and memory problems.

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?

Try to reduce the size of the hierarchy (by suppressing the <ZK>Not
Assigned</> node or by remodeling). You can find tips on this in the
documentation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RH228 - Hierarchy &1 contains more than 1 million entries ?

  The SAP error message RH228 indicates that a hierarchy contains more than 1 million entries, which exceeds the system's limit for processing such hierarchies. This can occur in various contexts, such as when working with organizational structures, reporting hierarchies, or other hierarchical data structures in SAP.
  Cause:
  
  Exceeding Limits: The primary cause of this error is that the hierarchy being processed has more than 1 million entries, which is the maximum limit for certain operations in SAP.
  Data Volume: Large datasets or extensive organizational structures can lead to this situation, especially in large enterprises with complex hierarchies.
  Inefficient Design: Sometimes, the design of the hierarchy may not be optimal, leading to unnecessary complexity and size.
  
  Solution:
  
  
  Reduce Hierarchy Size:
  
  Filter Data: If possible, filter the data to reduce the number of entries in the hierarchy. This can be done by limiting the scope of the hierarchy to only the relevant entries needed for the analysis or reporting.
  Aggregate Data: Consider aggregating data at a higher level to reduce the number of entries. For example, instead of having detailed entries for every department, you could summarize them at the division level.
  
  
  
  Split Hierarchies:
  
  If the hierarchy is too large, consider splitting it into smaller, more manageable hierarchies. This can help in processing and reporting without hitting the entry limit.
  
  
  
  Review Hierarchy Design:
  
  Analyze the design of the hierarchy to identify any redundancies or unnecessary complexity. Simplifying the hierarchy can help in managing the number of entries.
  
  
  
  Use Alternative Reporting Tools:
  
  If the hierarchy is primarily used for reporting, consider using alternative reporting tools or methods that can handle larger datasets without hitting the entry limit.
  
  
  
  Consult SAP Documentation:
  
  Check SAP's official documentation or support notes for any updates or recommendations regarding handling large hierarchies.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a suitable solution, consider reaching out to SAP support for assistance. They may provide specific guidance based on your system configuration and requirements.
  
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional context on handling large hierarchies.
  Performance Considerations: Be aware that large hierarchies can impact system performance, so optimizing them is beneficial not just for avoiding errors but also for overall system efficiency.
  Testing Changes: Always test any changes in a development or test environment before applying them to production to ensure that they do not introduce new issues.
  
  By following these steps, you should be able to address the RH228 error and manage your hierarchies more effectively in SAP.