How To Fix W_CB028 - &1 is not a length

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 028

• Message text: &1 is not a length

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message W_CB028 - &1 is not a length ?

  SAP Error Message:
  
  W_CB028 &1 is not a length
  
  Meaning / Cause:
  This error occurs when a value that is expected to represent a length (usually a numeric value indicating the length of a field, string, or data element) is found to be invalid or not recognized as a proper length. The placeholder &1 in the message is replaced by the actual value or field name that caused the error.
  Common causes include:
  
  The value passed or assigned to a length parameter is non-numeric or zero.
  The length value is missing or incorrectly defined in the data dictionary or program.
  A field or variable expected to hold a length value contains invalid data.
  Incorrect usage of length-related functions or parameters in ABAP code or configuration.
  
  
  Where it typically occurs:
  
  During data dictionary operations (e.g., defining or modifying data elements, domains).
  In ABAP programs when handling string or internal table lengths.
  When interfacing with external systems or modules that require length parameters.
  In screen field length validations or dynamic field length assignments.
  
  
  How to analyze:
  
  Check the value of &1: Identify what value or field is causing the error.
  Review the program or configuration: Look at the code or customizing step where the length is assigned or validated.
  Verify data dictionary objects: Ensure that the data element or domain has a valid length defined.
  Debug the program: If the error occurs during runtime, use the debugger to check the variable holding the length value.
  Check for data inconsistencies: Sometimes, data corruption or incorrect input can cause invalid length values.
  
  
  Solution / Resolution:
  
  Correct the length value: Make sure the length parameter or field contains a valid positive integer.
  Fix the data dictionary definition: If the error is due to a data element or domain, adjust its length properly.
  Validate input data: Ensure that any input or interface data providing length values is correct.
  Adjust ABAP code: Add checks or conversions to ensure length values are numeric and within expected ranges.
  Consult SAP Notes: Sometimes, specific SAP Notes address known issues related to this error.
  
  
  Related Information:
  
  This message is part of the SAP Basis or ABAP runtime error messages.
  It is often linked to data type or field length mismatches.
  Similar errors might include messages about invalid field lengths or data element definitions.
  If the error occurs during transport or system copy, check for inconsistencies in data dictionary objects.
  
  
  Example:
  If the error message is:
  
  W_CB028 'ABC' is not a length
  
  It means the system expected a numeric length but got the string 'ABC' instead.
  
  If you provide the context or the exact scenario where this error occurs (e.g., during program execution, data dictionary change, or interface processing), I can help with a more specific solution.