How To Fix DO266 - Output length (&) is greater than the calculated output length (&)

DO266 - Overview

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 266

• Message text: Output length (&) is greater than the calculated output length (&)

What causes this issue?

The output length is calculated from the specified data type, number of
postitions, decimal places and sign.
The specified output length exceeds the output length calculated for
the data type.
If you have string data types, no output length can be assigned
because, in the standard system, these can be displayed on the screen
in a roll field without length limitation. The screen field in this
case contains the visualized length defined by the developer in the
screen design, and it therefore has an unlimited defined length.

System Response

Error message extract from SAP system. Copyright SAP SE.

DO266 - Details

• The SAP error message DO266 indicates that there is a discrepancy between the expected output length of a data field and the actual output length defined in the system. This typically occurs in the context of data output, such as when generating reports or exporting data.
  
  Cause:
  The error message "Output length (&) is greater than the calculated output length (&)" usually arises due to one of the following reasons:
  
  
  Field Length Mismatch: The defined length of a field in the output format (like a report or data export) is greater than what is calculated based on the data type or the actual data being processed.
  
  
  Data Type Issues: The data type of the field may not match the expected type, leading to incorrect length calculations.
  
  
  Configuration Errors: There may be configuration settings in the output format that are incorrectly set, leading to an expectation of a longer output than what is actually available.
  
  
  Custom Code: