Message type: E = Error
Message class:  OIJ_RU - Messages for TSW-ETRAN integration 
Message number: 300
Message text: Enter table name
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.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message OIJ_RU300 "Enter table name" typically occurs in the context of the SAP Oil and Gas (OIJ) module, particularly when working with the data management or reporting functionalities. This error indicates that a required table name has not been provided in a specific transaction or function.
Cause: Missing Input: The most common cause of this error is that the user has not entered a required table name in the relevant field.
Configuration Issues: There may be issues with the configuration of the OIJ module or the specific transaction being used. User Authorization: The user may not have the necessary authorizations to access or modify the data related to the specified table. System Bugs: Occasionally, this error can arise from bugs or inconsistencies in the SAP system or the specific version of the OIJ module being used.
Solution: Enter Table Name: The immediate solution is to ensure that you enter a valid table name in
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
OIJ_RU200 Enter both partner number and partner object
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIJ_RU102 Enter currency for the freight declared value
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIJ_RU301 Enter field name or text ID
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIJ_RU302 Enter either field name or text ID; do not enter both
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.