How To Fix DMC_GENERAL284 - Mig. Object &1: Detected invalid INDX Key Mapping for RELID &2 Comp. &3

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 284

• Message text: Mig. Object &1: Detected invalid INDX Key Mapping for RELID &2 Comp. &3

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_GENERAL284 - Mig. Object &1: Detected invalid INDX Key Mapping for RELID &2 Comp. &3 ?

  The SAP error message DMC_GENERAL284 typically indicates an issue with the data migration process, specifically related to the mapping of index keys for a migration object. This error can occur during data migration activities, such as when using the SAP Data Migration Cockpit or other data migration tools.
  Cause:
  The error message suggests that there is an invalid index key mapping for the specified migration object. This can happen due to several reasons, including:
  
  Incorrect Mapping Configuration: The mapping of the source and target fields may not be correctly defined, leading to inconsistencies.
  Data Integrity Issues: The data in the source system may not conform to the expected format or structure, causing the mapping to fail.
  Missing or Duplicate Keys: The keys that are supposed to be unique may be missing or duplicated in the source data.
  Changes in Data Model: If there have been changes in the data model (e.g., changes in table structures or relationships), the existing mappings may no longer be valid.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Mapping Configuration:
  
  Review the mapping configuration for the migration object in the Data Migration Cockpit.
  Ensure that all source fields are correctly mapped to their corresponding target fields.
  
  
  
  Validate Source Data:
  
  Check the source data for any inconsistencies, such as missing or duplicate keys.
  Ensure that the data adheres to the expected format and structure.
  
  
  
  Review Data Model Changes:
  
  If there have been recent changes to the data model, verify that the migration mappings are updated accordingly.
  Adjust the mappings to reflect any changes in the structure of the source or target systems.
  
  
  
  Test Migration:
  
  After making the necessary adjustments, perform a test migration with a small subset of data to ensure that the issue is resolved.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration object for any additional guidance or known issues.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in data migration.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Migration Cockpit: Familiarize yourself with the features and functionalities of the SAP Data Migration Cockpit, as it provides tools for mapping, validation, and execution of data migration tasks.
  Data Quality Tools: Consider using data quality tools to cleanse and validate your source data before migration to minimize the risk of errors.
  
  By following these steps, you should be able to identify and resolve the cause of the DMC_GENERAL284 error message during your data migration process.