How To Fix DMC_RT_MSG186 - Cannot move value '&1' from source field '&2-&3' to target field &4

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 186

• Message text: Cannot move value '&1' from source field '&2-&3' to target field &4

What causes this issue?

The system tried to move value &V1& from the source system field &V2& -
&V3& to field &V4& in the target system. The move failed as the value in
the source system field does not correspond to the format of the target
field.

System Response

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

How to fix this error?

Depending on your data source, you can either change the value in the
source system (in case of file upload) or you can define a
transformation rule (for example a rule that specifies mapping values)
in order to change the value of the field in the source system to a
format that can be passed to the field in the target system.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG186 - Cannot move value '&1' from source field '&2-&3' to target field &4 ?

  The SAP error message DMC_RT_MSG186 indicates that there is an issue with moving a value from a source field to a target field during a data migration or transformation process. This error typically arises in the context of SAP Data Migration Cockpit (DMC) or similar data handling scenarios.
  Cause:
  The error message can occur due to several reasons, including:
  
  
  Data Type Mismatch: The data type of the source field does not match the data type of the target field. For example, trying to move a string value into a numeric field.
  
  
  Field Length Issues: The length of the value in the source field exceeds the maximum length allowed for the target field.
  
  
  Invalid Value: The value being moved may not be valid for the target field, such as trying to insert a date in an incorrect format.
  
  
  Mapping Issues: There may be a problem with the mapping configuration between the source and target fields in the data migration process.
  
  
  Null or Empty Values: If the source field is null or empty and the target field does not allow null values, this can also trigger the error.
  
  
  Solution:
  To resolve the DMC_RT_MSG186 error, you can take the following steps:
  
  
  Check Data Types: Ensure that the data types of the source and target fields are compatible. If necessary, convert the data type of the source value to match the target field.
  
  
  Validate Field Lengths: Verify that the length of the data in the source field does not exceed the maximum length of the target field. If it does, you may need to truncate the value or adjust the target field's length if possible.
  
  
  Review Value Validity: Check the value being moved to ensure it is valid for the target field. For example, if the target field expects a date, ensure the format is correct.
  
  
  Examine Mapping Configuration: Review the mapping configuration in the data migration tool to ensure that the source and target fields are correctly mapped.
  
  
  Handle Null Values: If the source field can be null or empty, ensure that the target field can accept null values or provide a default value if necessary.
  
  
  Debugging: If the issue persists, consider enabling debugging or logging features in the data migration tool to get more detailed information about the error.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the Data Migration Cockpit for detailed information on data types, field mappings, and error handling.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and how they resolved them.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP to avoid common pitfalls.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.