How To Fix MM106 - Field overflow occurred during conversion

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 106

• Message text: Field overflow occurred during conversion

What causes this issue?

A field overflow occurred during conversion. One possible reason is
that the numerical transfer parameters you have defined are too small
(this is paricularly likely with field types P and I).

System Response

The conversion cannot be carried out.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM106 - Field overflow occurred during conversion ?

  The SAP error message MM106, which states "Field overflow occurred during conversion," typically occurs in the Materials Management (MM) module when there is an issue with data conversion, particularly when the system attempts to convert a value that exceeds the defined limits of the target field.
  Causes:
  
  Data Type Mismatch: The value being processed may be too large for the target field's data type (e.g., trying to store a number larger than what an integer field can hold).
  Incorrect Configuration: Configuration settings in the material master or related tables may not align with the expected data formats or sizes.
  Input Errors: User input may contain invalid or excessively large values that exceed the field's capacity.
  Custom Code Issues: If there are custom programs or enhancements, they may not handle data conversions properly, leading to overflow errors.
  
  Solutions:
  
  Check Input Values: Review the values being entered or processed to ensure they are within acceptable limits for the target fields.
  Field Lengths: Verify the field lengths in the database tables and ensure that the data being processed does not exceed these lengths.
  Data Type Adjustments: If necessary, adjust the data types in the database or configuration settings to accommodate larger values.
  Review Custom Code: If there are custom developments, review the code for any potential issues with data handling and conversions.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that resolve the issue.
  Testing: Conduct thorough testing after making changes to ensure that the issue is resolved and does not recur.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary) to check field definitions or SE80 (Object Navigator) to review custom code.
  SAP Documentation: Refer to SAP Help documentation for detailed information on data types and field lengths in the MM module.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify the cause of the MM106 error and implement a suitable solution.