Message type: E = Error
Message class:  WRF_DISPRO -  
Message number: 015
Message text: Select just one row
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.
SAP Error Message: WRF_DISPRO015 Select just one row
Cause: This error occurs when a user is expected to select exactly one row (record) in a selection screen, table, or list, but either no row or multiple rows have been selected. The program or transaction requires a single, unambiguous selection to proceed, and the current user action violates this requirement. When does it typically occur? In SAP Workflow or Disposition Profile transactions where a single item must be chosen for further processing. In selection screens or ALV grids where the logic expects exactly one row to be selected. During processing steps that require a unique context or object, such as changing or displaying details of a single record.
Solution: Select exactly one row: Review the selection and ensure that only one row is highlighted or checked before proceeding. Deselect multiple rows: If multiple rows are selected, deselect all but one. Check default selections: Sometimes, the system may pre-select multiple rows; clear these
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
WRF_DISPRO014 Select a row that is flagged for deletion
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
WRF_DISPRO013 Select a row
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
WRF_DISPRO016 Deletion program was started on &1 &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
WRF_DISPRO017 Deletion program finished on &1 &2
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.