How To Fix NR031 - Object &: Buffer is too small (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: NR - Number ranges

• Message number: 031

• Message text: Object &: Buffer is too small (see long text)

What causes this issue?

Number range buffer is full.
The prerequisite for this is that the number of current buffer
entries is close to the value for the maximum number of puffer entries.
Both values can be seen by using transaction SM56.

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

The buffer must be enlarged so that no overflow occurs. This is
necessary. The nobuf/max_no_buffer_entries parameter must be changed.
As the number of buffered number range objects is very
customer-specific, no generally applicable recommendation can be given
for the value of this parameter. The first step is to set the
parameter to 1000 (the standard value is 100). You must note the
following when changing parameters:
- Until now, the puffer needed ca. 28000 bytes. After the parameter
change, it will be 280000 bytes. As the number range puffer is in pool
40, it is possible that you have to increase its size by 260000 bytes.
- The parameter change is not valid until the server is started.
- It is likely that this parameter change makes sense for all
servers and should therefore be performed in DEFAULT.PFL.
- As we do not know exactly how many number range objects should be
buffered, you should check the utilization of the puffer after the
parameter change and possibly adapt the parameters again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NR031 - Object &: Buffer is too small (see long text) ?

  The SAP error message NR031, which states "Object &: Buffer is too small (see long text)," typically occurs when the system is trying to process a data object that exceeds the allocated buffer size. This can happen in various contexts, such as when dealing with large data sets, long text fields, or when the system is trying to read or write data that doesn't fit into the predefined buffer.
  Cause:
  
  Data Size Exceeds Buffer Limit: The most common cause is that the data being processed is larger than the buffer size defined in the system settings.
  Configuration Issues: Incorrect configuration of data structures or buffer sizes in the SAP system can lead to this error.
  Program Logic: The ABAP program or function module may not be handling data sizes correctly, leading to attempts to store or process data that exceeds the buffer limits.
  
  Solution:
  
  Increase Buffer Size: If possible, increase the buffer size for the specific object or data type that is causing the issue. This may involve adjusting settings in the relevant configuration or data dictionary.
  Optimize Data Handling: Review the ABAP code or program logic to ensure that data is being handled efficiently. This may include breaking down large data sets into smaller chunks or optimizing the way data is read/written.
  Check Data Lengths: Ensure that the lengths of the fields in the database tables or structures are correctly defined and that they match the expected sizes in the program.
  Review SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on buffer size configurations.
  Consult Documentation: Refer to SAP documentation for guidelines on buffer sizes and data handling best practices.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to NR031 for specific patches or updates that may resolve the issue.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect the data structures and their definitions.
  ABAP Debugging: If you have access to the ABAP code, use debugging tools to trace where the error occurs and analyze the data being processed at that point.
  Performance Considerations: Consider the performance implications of increasing buffer sizes, as larger buffers may impact memory usage and system performance.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further analysis and support.