How To Fix R7257 - Error when reading InfoObject &1 from source system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: R7 - BW: Data basis

• Message number: 257

• Message text: Error when reading InfoObject &1 from source system &2

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 R7257 - Error when reading InfoObject &1 from source system &2 ?

  The SAP error message R7257, which states "Error when reading InfoObject &1 from source system &2," typically occurs in the context of data extraction or data transfer processes, particularly when working with SAP BW (Business Warehouse) or SAP BI (Business Intelligence) systems. This error indicates that there was a problem retrieving data for a specific InfoObject from a source system.
  Causes:
  
  Connectivity Issues: There may be a problem with the connection between the SAP BW system and the source system (e.g., SAP ERP, SAP S/4HANA).
  Authorization Problems: The user or service account may not have the necessary authorizations to access the InfoObject in the source system.
  InfoObject Configuration: The InfoObject may not be properly configured or may not exist in the source system.
  Data Source Issues: The data source from which the InfoObject is being extracted may be inactive or incorrectly set up.
  Transport Issues: If the InfoObject was recently transported from one system to another, there may be inconsistencies or missing components.
  Data Type Mismatch: There may be a mismatch in data types or formats between the source system and the BW system.
  
  Solutions:
  
  Check Connectivity: Verify that the connection to the source system is active and functioning correctly. You can test the connection using transaction codes like SM59 (RFC destinations).
  Review Authorizations: Ensure that the user or service account has the necessary authorizations to access the InfoObject in the source system. You can check this using transaction SU53 to analyze authorization failures.
  Validate InfoObject: Confirm that the InfoObject exists in the source system and is correctly configured. You can check this in the source system using transaction RSA1 or similar.
  Check Data Source: Ensure that the data source is active and correctly set up. You can do this in the BW system under the Data Warehousing Workbench.
  Transport Consistency: If the InfoObject was recently transported, check for any inconsistencies or missing components. You may need to re-transport or adjust the configuration.
  Data Type Verification: Ensure that the data types and formats of the InfoObject in the source system match those expected in the BW system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), SM59 (RFC Destinations), and SU53 (Authorization Check).
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Logs and Traces: Review logs and traces in both the BW and source systems to gather more information about the error. This can help pinpoint the exact cause of the issue.
  
  By following these steps, you should be able to diagnose and resolve the R7257 error effectively. If the issue persists, consider reaching out to SAP support for further assistance.