How To Fix E2139 - Type change is not possible (value '&' is not numeric)

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 139

• Message text: Type change is not possible (value '&' is not numeric)

What causes this issue?

You have changed the data type of the domain from CHAR to a numeric
data type. However, for this domain one or more fixed values are
defined which are not numeric.

System Response

The type changed is not compatible with defined fixed values and is
therefore not possible.

How to fix this error?

Correct your entry.
Before the type change the fixed values must be adjusted to the new
data type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2139 - Type change is not possible (value '&' is not numeric) ?

  The SAP error message E2139, which states "Type change is not possible (value '&' is not numeric)," typically occurs when there is an attempt to convert or assign a non-numeric value to a field that expects a numeric type. This can happen in various scenarios, such as during data processing, input validation, or when performing calculations.
  Cause:
  
  Non-numeric Input: The most common cause is that a variable or field that is expected to hold a numeric value is being assigned a string or non-numeric value (e.g., letters, special characters).
  Data Type Mismatch: There may be a mismatch between the expected data type of a variable and the actual data type being provided.
  Incorrect Data Entry: Users may enter invalid data in input fields that are supposed to accept only numeric values.
  Data Import Issues: If data is being imported from external sources (like CSV files), non-numeric values may inadvertently be included.
  
  Solution:
  
  Input Validation: Ensure that all inputs are validated before processing. Implement checks to confirm that the data being entered or processed is numeric.
  Data Type Checks: Review the data types of the variables and ensure that they match the expected types. If a variable is supposed to be numeric, ensure that it is declared as such.
  Error Handling: Implement error handling to catch and manage situations where non-numeric values are encountered. This can include displaying user-friendly error messages or logging the error for further analysis.
  Data Cleansing: If the error arises from imported data, perform data cleansing to remove or correct non-numeric values before processing.
  Debugging: Use debugging tools to trace the execution of the program and identify where the non-numeric value is being introduced.
  
  Related Information:
  
  SAP Documentation: Refer to SAP's official documentation for more details on data types and error handling.
  ABAP Development: If you are working with ABAP, familiarize yourself with data type declarations and conversion functions (like CONVERT_TO_STRING, CONVERT_TO_NUMERIC, etc.).
  User Training: If the error is due to user input, consider providing training or guidelines on acceptable data formats.
  
  By addressing the root cause of the error and implementing appropriate solutions, you can prevent the occurrence of the E2139 error in SAP.