Message type: E = Error
Message class:  RPM_WORKLIST - Portf. Mgmt Worklist: Business Object Messages 
Message number: 106
Message text: Project &1 to be be added
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 RPM_WORKLIST106 typically indicates that there is an issue with adding a project to a worklist in the SAP Project Management module. This error can arise due to various reasons, and understanding the cause is essential for finding a solution. Possible Causes: Project Status: The project you are trying to add may not be in a status that allows it to be added to the worklist. For example, if the project is closed or archived, it cannot be added. Authorization Issues: The user may not have the necessary authorizations to add the project to the worklist. This could be due to missing roles or permissions in the SAP system. Project Type: Certain project types may not be eligible to be added to the worklist. Ensure that the project type is compatible with the worklist functionality.
Configuration Issues: There may be configuration settings in the SAP system that prevent the project from being
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
RPM_WORKLIST105 Project &1 to be deleted
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RPM_WORKLIST104 Favorites list &1 to be created
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RPM_WORKLIST107 Favorites list to be set as default
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RPM_WORKLIST108 View set as default
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.