How To Fix DMC_GENERAL404 - Error when setting payload; data of node &1 are not compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 404

• Message text: Error when setting payload; data of node &1 are not compatible

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_GENERAL404 - Error when setting payload; data of node &1 are not compatible ?

  The SAP error message DMC_GENERAL404 typically occurs in the context of Data Migration Cockpit (DMC) when there is an issue with the data being processed. The specific message indicates that the data of a particular node is not compatible with the expected structure or format. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Data Structure Mismatch: The data being uploaded may not match the expected structure defined in the DMC. This could be due to missing fields, incorrect data types, or unexpected values.
  Data Type Incompatibility: The data types of the fields in the source data may not align with the target data model. For example, trying to upload a string where a numeric value is expected.
  Mandatory Fields Missing: If there are mandatory fields in the target structure that are not provided in the source data, this can lead to compatibility issues.
  Incorrect Mapping: The mapping between the source and target data structures may not be correctly defined, leading to mismatches.
  Versioning Issues: If there are changes in the data model or versioning issues between the source and target systems, this can cause compatibility problems.
  
  Solutions:
  
  Check Data Structure: Review the data structure of the source file and ensure it matches the expected structure in the DMC. Make sure all required fields are present and correctly formatted.
  Validate Data Types: Ensure that the data types in the source file match those expected in the target system. Convert data types if necessary (e.g., strings to numbers).
  Review Mapping Configuration: Check the mapping configuration in the DMC to ensure that all fields are correctly mapped from the source to the target.
  Use Data Validation Tools: Utilize any available data validation tools within the DMC to identify issues with the data before attempting to upload it.
  Consult Documentation: Refer to the SAP documentation for the Data Migration Cockpit to understand the expected data formats and structures.
  Test with Sample Data: If possible, test the migration with a smaller set of sample data to identify specific issues without processing the entire dataset.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  DMC Documentation: Review the official SAP documentation for the Data Migration Cockpit for guidelines on data preparation and migration processes.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the root cause of the DMC_GENERAL404 error and implement a solution to resolve it.