How To Fix AWRT000 - The dataset (& bytes) is too big (abap/alvgrid/size_nodod_mb)

SAP Error Message - Details

• Message type: E = Error

• Message class: AWRT -

• Message number: 000

• Message text: The dataset (& bytes) is too big (abap/alvgrid/size_nodod_mb)

What causes this issue?

The system tried to send a data record to the frontend, which contains
&V1& bytes. However, the data volume has been restricted to &V2& bytes.

System Response

The current application program has been terminated with a runtime
error.

How to fix this error?

Restrict the data selection if possible or contact your system
administrator.

Procedure for System Administrators

The maximum size of these data volumes can be set using the kernel
parameter 'abap/alvgrid/size_nodod_mb' (in mega bytes).

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 AWRT000 - The dataset (& bytes) is too big (abap/alvgrid/size_nodod_mb) ?

  The SAP error message AWRT000 indicates that the dataset you are trying to process is too large for the system to handle. This error typically occurs in ABAP programs, especially when dealing with ALV (ABAP List Viewer) grids, and it is related to the size of the data being processed exceeding the allowable limits.
  Cause:
  
  Data Volume: The dataset you are trying to display or process exceeds the maximum size limit defined in the system. This can happen when you are trying to load a large number of records into an ALV grid.
  Memory Limitations: The system may have memory constraints that prevent it from handling large datasets efficiently.
  Configuration Settings: There may be specific configuration settings in the SAP system that limit the size of datasets that can be processed.
  
  Solution:
  
  
  Reduce Dataset Size: 
  
  Implement pagination or filtering to limit the number of records being processed at one time. For example, instead of loading all records, load only a subset based on user input or specific criteria.
  Use selection criteria to narrow down the dataset before passing it to the ALV grid.
  
  
  
  Increase Memory Limits:
  
  If you have access to system configuration, consider increasing the memory limits for the ABAP runtime environment. This may involve adjusting parameters in the instance profile (e.g., abap/heap_area_total).
  
  
  
  Optimize Data Retrieval:
  
  Optimize the underlying database queries to ensure that only necessary data is retrieved. Use appropriate indexes and avoid fetching unnecessary fields.
  
  
  
  Use Background Processing:
  
  If the dataset is too large for interactive processing, consider using background jobs to process the data and then display results in a more manageable format.
  
  
  
  Check System Settings:
  
  Review the system settings related to ALV grid and dataset handling. Consult with your SAP Basis team to ensure that the system is configured to handle larger datasets if necessary.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Review the official SAP documentation for ALV and ABAP programming to understand best practices for handling large datasets.
  Performance Monitoring: Use transaction codes like ST22 (Dump Analysis) and SM21 (System Log) to monitor for any related performance issues or dumps that may provide further insights into the problem.
  
  By following these steps, you should be able to address the AWRT000 error and improve the handling of large datasets in your SAP environment.