How To Fix AQ255 - List is wider than 255 characters (generation not possible)

SAP Error Message - Details

• Message type: E = Error

• Message class: AQ - Message texts for SAP Query

• Message number: 255

• Message text: List is wider than 255 characters (generation not possible)

What causes this issue?

You attempted to define a query where the line width of the generated
list is greater than 255 characters.
You define the line width on the <LS>Title, Format</> screen which
permits a maximum width of 255 characters. However, when defining
statistics and ranked lists, you can implicitly increase this value,
since the lines cannot be broken up. This is the case here. An implicit
increase in the width of the list would result in a list wider than 255
characters. For this reason, the query cannot be executed.

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?

Check which of the statistics or ranked lists is responsible and modify
it so that the resulting list width is no greater than 255 characters.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AQ255 - List is wider than 255 characters (generation not possible) ?

  The SAP error message AQ255 ("List is wider than 255 characters (generation not possible)") typically occurs when you are trying to generate a list or report in SAP that exceeds the character limit of 255 characters for a single line of output. This can happen in various contexts, such as when using certain reporting tools or when generating output in formats that have strict character limits.
  Cause:
  
  Output Length Exceeded: The primary cause of this error is that the output being generated (e.g., a report, list, or table) contains a line that exceeds the 255-character limit.
  Field Lengths: If you are concatenating multiple fields or values into a single output line, the total length may exceed the limit.
  Data Formatting: Certain formatting or data manipulation may inadvertently increase the length of the output.
  
  Solution:
  
  Review Output Fields: Check the fields being included in the output. If any field is particularly long, consider truncating it or excluding it from the output.
  Modify Report Layout: If you are using a report layout, adjust the layout to ensure that no single line exceeds the 255-character limit.
  Use Multiple Lines: If possible, modify the report to output data across multiple lines instead of trying to fit everything into a single line.
  Adjust Data Selection: If the report is pulling in too much data, consider filtering the data to reduce the overall length of the output.
  Check for Concatenation: If you are concatenating multiple fields, ensure that the resulting string does not exceed the limit. You may need to split the concatenation into multiple parts.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. Sometimes, SAP provides fixes or workarounds for known issues.
  Documentation: Review the documentation for the specific SAP module or tool you are using to understand any limitations regarding output lengths.
  Testing: After making changes, test the report or output generation to ensure that the error no longer occurs.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.