How To Fix DMCLG756 - Reading type has been changed; runtime objects need to be regenerated

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 756

• Message text: Reading type has been changed; runtime objects need to be regenerated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG756 - Reading type has been changed; runtime objects need to be regenerated ?

  The SAP error message DMCLG756 indicates that there has been a change in the reading type of a data model, which requires the regeneration of runtime objects. This typically occurs in the context of SAP Data Warehousing or SAP BW (Business Warehouse) environments, where data models and their associated objects are defined and managed.
  Cause:
  
  Change in Reading Type: The reading type of a data model (e.g., InfoProvider, DSO, or CompositeProvider) has been modified. This could happen due to changes in the underlying data structure, modifications in the data flow, or updates to the data model configuration.
  Inconsistency: The change in reading type leads to inconsistencies between the metadata and the runtime objects that are already generated. The system requires the runtime objects to be updated to reflect the new reading type.
  
  Solution:
  To resolve the DMCLG756 error, you need to regenerate the runtime objects associated with the affected data model. Here are the steps to do this:
  
  
  Identify the Affected Object: Determine which data model or InfoProvider is causing the error. This information is usually provided in the error message or can be found in the transaction where the error occurred.
  
  
  Regenerate Runtime Objects:
  
  Go to the relevant transaction in SAP BW (e.g., RSA1 for Data Warehousing Workbench).
  Navigate to the affected InfoProvider or data model.
  Right-click on the object and select the option to "Regenerate" or "Activate" the runtime objects. This may vary depending on the specific object type.
  Follow the prompts to complete the regeneration process.
  
  
  
  Check for Additional Errors: After regeneration, check for any additional errors or warnings that may need to be addressed.
  
  
  Test the Changes: Once the runtime objects are regenerated, test the data model to ensure that it is functioning correctly and that the changes have been applied successfully.
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for specific details on the data model and InfoProvider you are working with.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error.
  Support: If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to resolve the DMCLG756 error and ensure that your data model is functioning as expected.