How To Fix W_CB489 - Value of source &1 is too big for target &2

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 489

• Message text: Value of source &1 is too big for target &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W_CB489 - Value of source &1 is too big for target &2 ?

  The SAP error message:
  W_CB489: Value of source &1 is too big for target &2
  
  Cause:
  This warning occurs when a value from a source field is too large to fit into the target field during a data transfer or assignment operation. Specifically, the length or size of the source data exceeds the length or size defined for the target field.
  For example, if you are moving or assigning a string or numeric value from one variable or database field to another, and the target field is defined with a smaller length or precision, this warning is triggered.
  
  Explanation:
  
  &1: The source field or variable name.
  &2: The target field or variable name.
  
  The system is informing you that the value in the source field cannot be fully accommodated in the target field without truncation or data loss.
  
  Solution:
  
  
  Check Field Lengths:
  
  Verify the data element or domain definitions of both source and target fields.
  Ensure the target field has sufficient length or precision to hold the source value.
  
  
  
  Adjust Target Field Size:
  
  If possible, increase the length or precision of the target field to match or exceed the source field.
  
  
  
  Data Truncation Handling:
  
  If increasing the target field size is not possible, consider truncating the source value explicitly before assignment.
  Use ABAP string functions like CONDENSE, SHIFT, or substring operations to reduce the source value length.
  
  
  
  Data Validation:
  
  Implement validation logic to check the length of the source data before assignment.
  Provide user feedback or error handling if the data is too large.
  
  
  
  Check Data Types:
  
  Ensure that the data types of source and target fields are compatible (e.g., numeric to numeric, string to string).
  
  
  
  
  Related Information:
  
  This warning is common in ABAP programming during field assignments, data transfers, or when using MOVE statements.
  It can also occur during data migration or interface processing where data structures differ.
  Review the ABAP program or data dictionary objects involved.
  Use transaction SE11 to check data element/domain definitions.
  Use debugging or runtime analysis to identify the exact assignment causing the warning.
  
  
  Example:
  DATA: source TYPE c LENGTH 10,
        target TYPE c LENGTH 5.
  
  source = 'ABCDEFGHIJ'. " Length 10
  target = source.       " Warning W_CB489 triggered because target length is 5
  To fix:
  
  Increase target length to 10 or more.
  Or assign only a substring: target = source(5).
  
  
  If you provide the context or code snippet where this warning occurs, I can help with a more specific solution.