How To Fix W_CB139 - Field &1: &2 is not a natural number

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 139

• Message text: Field &1: &2 is not a natural number

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message W_CB139 - Field &1: &2 is not a natural number ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W_CB139 Field &1: &2 is not a natural number
  
  Meaning / Cause:
  This warning message indicates that a particular field (denoted by &1) contains a value (&2) which is expected to be a natural number but is not. 
  
  Natural numbers are positive integers starting from 1, 2, 3, and so on (i.e., no zero, no negative numbers, no decimals).
  The field in question is likely defined or expected to hold only natural numbers, but the input or data contains a value that violates this rule (e.g., zero, negative number, decimal, or non-numeric characters).
  
  
  Common Causes:
  
  User input error: entering zero, negative numbers, or decimals where only positive integers are allowed.
  Data migration or upload issues where invalid values are passed.
  Programming or configuration error where the field validation is not properly enforced.
  Incorrect field mapping or data type mismatch.
  
  
  Solution / How to Fix:
  
  Check the field &1: Identify which field is causing the issue (the message will replace &1 with the field name).
  Verify the value &2: Check the actual value entered or passed to this field.
  Correct the value: Ensure the value is a natural number (1, 2, 3, ...).
  
  If zero or negative, change to a positive integer.
  If decimal, round or convert to an integer.
  If non-numeric, correct the input.
  
  
  Validate input controls: If this is a user input field, add input validation to prevent invalid entries.
  Check data sources: For data uploads or migrations, verify source data and transformation logic.
  Debug or check program logic: If this occurs during processing, debug to find where the invalid value is assigned.
  
  
  Related Information:
  
  This is a warning message (W_ prefix), so it may not stop processing but indicates a potential data issue.
  The message class is CB139 (or similar depending on system version).
  Often encountered in modules where numeric fields are strictly validated, such as finance, logistics, or master data maintenance.
  You can look up the message in transaction SE91 by entering message class CB139 and message number 139 to see the exact text and documentation.
  If you want to suppress or handle this warning differently, you may need to adjust the program logic or message handling.
  
  
  Example:
  If the message says:
  
  W_CB139 Field QUANTITY: 0 is not a natural number  
  
  The field QUANTITY has a value 0, which is invalid because quantity must be a positive integer.
  Correct by entering a quantity of 1 or more.
  
  
  If you provide the exact field name and value, I can help you with more specific advice!