How To Fix ADW027 - Not enough memory available; reduce the amount of selections

SAP Error Message - Details

• Message type: E = Error

• Message class: ADW - Advanced Developer Workplace

• Message number: 027

• Message text: Not enough memory available; reduce the amount of selections

What causes this issue?

The memory space for the new index exceeds the range available in shared
objects <DS:TRAN.SHMA>(transaction SHMA)</>.
You have two options:
a) Reduce the selection for indexing
b) Reserve more memory space for shared objects; to do so, contact your
system administrator

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

System Response

How to fix this error?

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 ADW027 - Not enough memory available; reduce the amount of selections ?

  The SAP error message ADW027 indicates that there is not enough memory available to process the current request, particularly when dealing with large datasets or complex queries. This error typically occurs in the context of SAP BW (Business Warehouse) or when using the Analysis for Office tool, where large amounts of data are being processed.
  Cause:
  
  Large Data Volume: The query or report is trying to retrieve or process a large volume of data that exceeds the available memory.
  Complex Queries: The complexity of the query, including multiple selections, filters, or calculations, can lead to high memory consumption.
  System Configuration: The SAP system may not be optimally configured for memory usage, or the server may have limited physical memory resources.
  Concurrent Users: High concurrent usage of the system can lead to memory contention, reducing the available memory for individual queries.
  
  Solution:
  
  
  Reduce Data Selection:
  
  Limit the number of records being retrieved by applying more specific filters or selections.
  Use aggregation or summarization to reduce the data volume.
  
  
  
  Optimize Queries:
  
  Simplify the query by removing unnecessary fields or calculations.
  Use variables or parameters to limit the data set dynamically.
  
  
  
  Increase Memory Allocation:
  
  If you have access to system administration, consider increasing the memory allocation for the SAP application server.
  Check the settings in the SAP profile parameters related to memory (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  
  
  
  Check System Performance:
  
  Monitor the system performance to identify any bottlenecks or resource constraints.
  Use transaction codes like ST02 (Buffer Monitor) and ST04 (Database Performance Monitor) to analyze memory usage.
  
  
  
  Batch Processing:
  
  If applicable, consider processing the data in smaller batches rather than all at once.
  
  
  
  Upgrade Hardware:
  
  If the issue persists and is a frequent occurrence, consider upgrading the server hardware to provide more memory resources.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message.
  Transaction Codes: Familiarize yourself with transaction codes like RSRT (Query Monitor) and RSOS (OLAP Query Monitor) for analyzing and optimizing queries.
  Documentation: Review SAP documentation on performance tuning and memory management for BW and reporting tools.
  
  By following these steps, you should be able to mitigate the ADW027 error and improve the performance of your SAP queries.