Message type: E = Error
Message class:  OIUHERR - Messages for california reg id 
Message number: 023
Message text: Please select a line, place cursor on a line or double-click on a line
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 OIUHERR023 typically occurs in the context of the SAP Oil and Gas (O&G) module, particularly when working with transactions that involve selecting or processing line items, such as in the handling of contracts, agreements, or other related documents.
Cause: The error message OIUHERR023 indicates that the user has not selected a line item in a list or table where a selection is required. This can happen in various scenarios, such as: Attempting to perform an action (like editing, deleting, or viewing details) without having a specific line item highlighted or selected. The cursor is not positioned on a valid line item, or the user has not double-clicked on a line to select it.
Solution: To resolve this error, you can follow these steps: Select a Line Item: Ensure that you have clicked on a specific line item in the list or table. You can do this by: Clicking once on the line item to
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
OIUHERR022 Long text does not exist.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIUHERR021 Entered an invalid year
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIUHERR024 The date that you entered is not a valid date
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIUHERR025 System call failed
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.