How To Fix DMC_RT_MSG604 - Casting to type &1 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 604

• Message text: Casting to type &1 failed

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG604 - Casting to type &1 failed ?

  The SAP error message DMC_RT_MSG604 with the description "Casting to type &1 failed" typically occurs in the context of data migration or data transformation processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an issue with converting or casting data from one type to another, which can happen for various reasons.
  Causes:
  
  Data Type Mismatch: The source data type does not match the expected target data type. For example, trying to cast a string to a numeric type when the string contains non-numeric characters.
  Null Values: Attempting to cast a null value to a non-nullable type can lead to this error.
  Invalid Data Format: The data in the source might not be in the expected format (e.g., date formats, decimal separators).
  Configuration Issues: Incorrect mapping or transformation rules in the migration configuration can lead to casting errors.
  Data Quality Issues: The source data may contain unexpected or invalid values that cannot be converted to the target type.
  
  Solutions:
  
  Check Data Types: Review the data types of both the source and target fields. Ensure that they are compatible and that the source data can be correctly cast to the target type.
  Data Validation: Validate the source data for any inconsistencies or invalid formats. Clean the data if necessary to ensure it meets the expected criteria.
  Mapping Configuration: Review the mapping and transformation rules in the migration configuration. Ensure that they are correctly defined and that any necessary conversions are explicitly handled.
  Handle Null Values: If null values are present, ensure that the target field can accept nulls or provide a default value during the casting process.
  Testing: Perform tests with a smaller subset of data to identify specific records that may be causing the issue. This can help isolate the problem.
  Error Logs: Check the error logs for more detailed information about the specific record or data that is causing the casting failure.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the Data Migration Cockpit or the specific tool you are using for more detailed guidance on data types and migration processes.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions or workarounds.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration, including data cleansing, validation, and transformation techniques.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the DMC_RT_MSG604 error and successfully complete your data migration or transformation tasks.