Message type: E = Error
Message class:  /SAPAPO/SDP -  
Message number: 620
Message text: Selection contains navigation attributes, display of notes not possible
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 /SAPAPO/SDP620 Selection contains navigation attributes, display of notes not possible typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when working with the Supply Network Planning (SNP) or Demand Planning (DP) modules. This error indicates that the selection criteria you are using to display notes or details in a report or transaction include navigation attributes, which are not supported for the operation you are trying to perform.
Cause: Navigation Attributes: The selection criteria include navigation attributes (like characteristics that allow you to drill down into data) that are not compatible with the display of notes or details. Data Model Limitations: The underlying data model may not support displaying notes when navigation attributes are included in the selection. Report Configuration: The report or transaction you are using may not be configured to handle selections with navigation attributes.
Solution: Modify Selection Criteria: Remove any navigation attributes from your selection criteria.
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPAPO/SDP619 No notes can be displayed for aggregates
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/SDP617 Smoothing factor must be between 0 and 1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/SDP621 No notes can be processed in the current selection
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/SDP622 &1 orders moved from &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.