How To Fix /CFG/MIGRATION155 - Conversion to number failed. &1 is not a number

SAP Error Message - Details

• Message type: E = Error

• Message class: /CFG/MIGRATION -

• Message number: 155

• Message text: Conversion to number failed. &1 is not a 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 /CFG/MIGRATION155 - Conversion to number failed. &1 is not a number ?

  The SAP error message /CFG/MIGRATION155 Conversion to number failed. &1 is not a number typically occurs during data migration or conversion processes in SAP, particularly when the system is trying to convert a string or character value into a numeric format, but the value is not a valid number.
  Cause:
  
  Invalid Data Format: The value being processed contains non-numeric characters (e.g., letters, special characters) or is formatted incorrectly (e.g., using commas instead of periods for decimal points).
  Leading/Trailing Spaces: The value may have leading or trailing spaces that prevent it from being recognized as a number.
  Incorrect Data Type: The field in which the value is being stored may not be compatible with the expected numeric format.
  Localization Issues: Different locales may use different formats for numbers (e.g., decimal separators), which can lead to conversion issues.
  
  Solution:
  
  Data Validation: Check the data being processed for any non-numeric characters or formatting issues. Ensure that all values intended to be numeric are indeed valid numbers.
  Trim Spaces: Remove any leading or trailing spaces from the data. This can often be done using string manipulation functions in your data processing logic.
  Correct Formatting: Ensure that the numeric values are formatted correctly according to the expected format in SAP. For example, if the system expects a period as a decimal separator, ensure that commas are replaced.
  Data Type Check: Verify that the data types in your source data match the expected data types in SAP. If necessary, adjust the data types in your source system or during the migration process.
  Use Conversion Functions: If you are using ABAP or another programming language, utilize built-in functions to safely convert strings to numbers, which can handle errors more gracefully.
  Review Migration Logic: If this error occurs during a migration process, review the migration logic to ensure that it correctly handles all data types and formats.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes like SE11 (Data Dictionary) or SE37 (Function Builder) to analyze the data structures involved.
  Logs and Traces: Check the logs for more detailed error messages or stack traces that can provide additional context about where the error is occurring.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional guidance on data migration issues.
  Testing: If possible, create a test case with the problematic data to reproduce the error in a controlled environment, which can help in diagnosing the issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.