How To Fix KV646 - Maximum list width (& characters) exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: KV - Variance Analysis for Cost Centers and Cost Objects

• Message number: 646

• Message text: Maximum list width (& characters) exceeded

What causes this issue?

The maximum list width of &v1& characters was exceeded with the last
field you selected. This means that the list cannot be displayed
any more.

System Response

The last field you selected was not put into the list of output fields.

How to fix this error?

Make the output width of some fields smaller, or leave out the last
field you selected.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KV646 - Maximum list width (& characters) exceeded ?

  The SAP error message KV646, which states "Maximum list width (& characters) exceeded," typically occurs when the output of a report or transaction exceeds the maximum allowable width for the list display in SAP. This can happen in various scenarios, such as when generating reports, displaying lists, or exporting data.
  Cause:
  
  Excessive Data Width: The report or transaction is trying to display too many columns or the data in the columns is too wide, exceeding the predefined limit.
  Configuration Settings: The system may have specific settings that limit the maximum width of lists or reports.
  Custom Development: If there are custom reports or programs, they may not be optimized for the maximum width allowed.
  
  Solution:
  
  Reduce the Number of Columns: If possible, modify the report or transaction to display fewer columns. This can often be done by selecting only the necessary fields.
  Limit Data Width: If certain fields contain excessively long data, consider truncating or summarizing that data to fit within the allowed width.
  Adjust Layout Settings: Check if there are any layout settings that can be adjusted to accommodate more data or to change the display format.
  Use Pagination: If the report allows, implement pagination to break the data into smaller, more manageable sections.
  Custom Report Adjustments: If the error arises from a custom report, review the code to ensure it adheres to the maximum width constraints and optimize it accordingly.
  SAP Notes: Check for any relevant SAP Notes that may address this issue or provide patches or updates that could resolve the problem.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on report generation and list display settings.
  Transaction Codes: Familiarize yourself with transaction codes related to report generation (e.g., SE38 for ABAP programs, SE80 for object navigator).
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered and resolved similar issues.
  System Configuration: Consult with your SAP Basis or technical team to review system configuration settings that may impact list display limits.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support for further assistance.