How To Fix DMC_RT_GEN130 - Error while reading Shadow DDIC for structure &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_GEN - DMC: Nachrichten der Generierungfunktionen

• Message number: 130

• Message text: Error while reading Shadow DDIC for structure &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_GEN130 - Error while reading Shadow DDIC for structure &1 ?

  The SAP error message DMC_RT_GEN130 indicates that there is an issue while reading the Shadow Data Dictionary (DDIC) for a specific structure in the context of SAP Data Migration Cockpit (DMC). This error typically arises during data migration processes when the system is unable to access or interpret the metadata for a particular structure.
  Cause:
  
  Missing or Incomplete Metadata: The structure referenced in the error message may not be properly defined in the Shadow DDIC, or there may be inconsistencies in the metadata.
  Transport Issues: If the structure was recently transported from another system, there may have been issues during the transport process that led to incomplete or missing definitions.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to access the required metadata.
  System Configuration Issues: There may be configuration issues in the DMC or the underlying SAP system that prevent proper access to the DDIC.
  
  Solution:
  
  Check Structure Definition: Verify that the structure mentioned in the error message is correctly defined in the Data Dictionary. You can do this by using transaction SE11 to check the structure's definition.
  Rebuild Shadow DDIC: If the structure is missing or incomplete, you may need to rebuild the Shadow DDIC. This can often be done by executing the relevant DMC transaction or program that refreshes the metadata.
  Check Transport Logs: If the structure was recently transported, check the transport logs for any errors or warnings that may indicate issues during the transport process.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the Data Dictionary and perform the migration tasks.
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error or provide guidance on similar issues. SAP Notes can provide patches or workarounds.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Data Migration Cockpit (DMC): This is a tool used for data migration in SAP systems, and understanding its configuration and usage can help in troubleshooting related issues.
  Data Dictionary (DDIC): Familiarity with the Data Dictionary and how structures are defined and used in SAP can be beneficial for resolving issues related to metadata.
  SAP Community and Forums: Engaging with the SAP Community or forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.