How To Fix MCBW002 - Transfer structure & unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: MCBW - Messages for SAP BW Logistics Extraction

• Message number: 002

• Message text: Transfer structure & unknown

What causes this issue?

Transfer structure &V1& is not recognized by the system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check that this structure is to be found in table TMC4.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCBW002 - Transfer structure & unknown ?

  The SAP error message MCBW002, which states "Transfer structure & unknown," typically occurs in the context of data transfer processes, such as during the transfer of data from one system to another or when working with data extraction and loading in SAP BW (Business Warehouse).
  Cause:
  The error message MCBW002 usually indicates that the system is unable to recognize or find the specified transfer structure. This can happen due to several reasons, including:
  
  
  Incorrect Transfer Structure Name: The transfer structure specified in the data transfer process (DTP) or in the relevant configuration might be misspelled or does not exist in the system.
  
  
  Missing or Inactive Transfer Structure: The transfer structure may not have been created, or it may have been deleted or deactivated.
  
  
  Transport Issues: If the transfer structure was recently transported from another system, there may have been issues during the transport process that caused it not to be available in the target system.
  
  
  Configuration Issues: There may be configuration issues in the data source or the data transfer process that are preventing the system from recognizing the transfer structure.
  
  
  Solution:
  To resolve the MCBW002 error, you can follow these steps:
  
  
  Check Transfer Structure Name: Verify that the transfer structure name specified in the DTP or relevant configuration is correct. Ensure there are no typos or incorrect references.
  
  
  Verify Existence of Transfer Structure:
  
  Go to the SAP BW transaction code RSA1 (Data Warehousing Workbench).
  Navigate to the relevant InfoSource or DataSource and check if the transfer structure exists.
  If it does not exist, you may need to create it.
  
  
  
  Activate Transfer Structure: If the transfer structure exists but is inactive, activate it. You can do this in the Data Warehousing Workbench.
  
  
  Check Transport Logs: If the transfer structure was recently transported, check the transport logs for any errors or issues that may have occurred during the transport process.
  
  
  Recreate Transfer Structure: If the transfer structure is missing or corrupted, you may need to recreate it based on the original specifications.
  
  
  Review DTP Settings: Ensure that the settings in the Data Transfer Process (DTP) are correctly configured to use the appropriate transfer structure.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 for data warehousing, RSC1 for DataSource maintenance, and RSC2 for InfoSource maintenance.
  SAP Notes: Check SAP Notes for any known issues or patches related to the MCBW002 error. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review SAP documentation on data transfer processes and transfer structures for additional context and best practices.
  
  By following these steps, you should be able to identify and resolve the cause of the MCBW002 error in your SAP system.