Message type: E = Error
Message class:  OIJ_RU - Messages for TSW-ETRAN integration 
Message number: 001
Message text: No communication data found
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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The SAP error message OIJ_RU001, which states "No communication data found," typically occurs in the context of the SAP Oil and Gas (OIJ) module, particularly when dealing with communication data for resources or entities. This error can arise due to various reasons, and understanding the cause is essential for finding an appropriate solution. Causes: Missing Communication Data: The most common cause is that the relevant communication data (such as email addresses, phone numbers, etc.) for the resource or entity you are trying to access is not maintained in the system. Incorrect Configuration: There may be issues with the configuration settings related to communication data in the SAP system. Authorization Issues: The user may not have the necessary authorizations to view or access the communication data. Data Inconsistencies: There could be inconsistencies or errors in the master data that prevent the system from retrieving the communication data. Solutions: Maintain Communication Data: Navigate to the relevant master data transaction (e.g.,
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