How To Fix EM066 - Conversion not possible (field &1, legacy system key: &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 066

• Message text: Conversion not possible (field &1, legacy system key: &3)

What causes this issue?

The transferred data record with legacy system key &V3& contains a
value in field <LS>&V1&</> that cannot be processed.
It was not possible to convert the contents of this field, &V2&, since
the value is not contained in the conversion table for conversion
object &V4&.

System Response

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

The following options are available:
Add the missing entry to the conversion table
Enter a value for the data record that is valid according to the
conversion table

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EM066 - Conversion not possible (field &1, legacy system key: &3) ?

  The SAP error message EM066, which states "Conversion not possible (field &1, legacy system key: &3)," typically occurs during data migration or data transfer processes, particularly when dealing with legacy systems. This error indicates that there is an issue with converting data from the legacy system into the SAP system for a specific field.
  Cause:
  
  Data Type Mismatch: The data type of the field in the legacy system does not match the expected data type in SAP. For example, trying to convert a string to a numeric type.
  Invalid Data Format: The data in the legacy system may not be in a format that SAP can recognize or convert. This could include incorrect date formats, special characters, or unexpected values.
  Missing Mapping: There may be a lack of proper mapping between the fields in the legacy system and the corresponding fields in SAP.
  Data Length Issues: The length of the data being transferred may exceed the maximum length allowed in the SAP field.
  Configuration Issues: There may be configuration settings in the SAP system that are not aligned with the data being imported.
  
  Solution:
  
  Check Data Types: Verify that the data types in the legacy system match those expected in SAP. Adjust the data types if necessary.
  Validate Data Format: Ensure that the data being transferred is in the correct format. For example, dates should be in the format recognized by SAP (e.g., YYYYMMDD).
  Review Mapping: Check the mapping between the legacy system fields and SAP fields to ensure that all fields are correctly mapped and that there are no missing mappings.
  Data Cleansing: Clean the data in the legacy system to remove any invalid characters or formats that could cause conversion issues.
  Adjust Field Lengths: Ensure that the data being transferred does not exceed the maximum length of the corresponding SAP fields. If necessary, truncate or modify the data.
  Consult Documentation: Refer to SAP documentation or guides related to data migration for specific instructions on handling data conversion issues.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like LSMW (Legacy System Migration Workbench) or others for data migration.
  SAP Notes: Check SAP Notes for any known issues or patches related to the EM066 error.
  Debugging: If you have access to debugging tools, you can trace the data flow to identify where the conversion is failing.
  Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who specializes in data migration.
  
  By addressing the above points, you should be able to resolve the EM066 error and successfully convert the data from the legacy system into SAP.