How To Fix RSSEM056 - Communication error during access to DataSource &1 in System &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSSEM - Messages for SEM

• Message number: 056

• Message text: Communication error during access to DataSource &1 in 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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSSEM056 - Communication error during access to DataSource &1 in System &2 ?

  The SAP error message RSSEM056 indicates a communication error when trying to access a DataSource in a specific system. This error typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when there are issues with data extraction from a source system.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP BW system and the source system.
  RFC Connection Problems: The Remote Function Call (RFC) connection to the source system may not be configured correctly or may be down.
  Authorization Issues: The user may not have the necessary authorizations to access the DataSource in the source system.
  DataSource Configuration: The DataSource may not be properly configured or may not exist in the source system.
  System Downtime: The source system may be down for maintenance or other reasons.
  Transport Layer Issues: If the DataSource was recently transported, there may be issues with the transport layer.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there