Message type: E = Error
Message class:  /SAPAPO/PDEM -  
Message number: 846
Message text: User &1 has no authority to execute the report!
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/PDEM846 User &1 has no authority to execute the report! indicates that the user attempting to execute a specific report in the SAP Advanced Planning and Optimization (APO) module does not have the necessary authorizations to do so. This is a common issue in SAP systems where user roles and authorizations are strictly managed.
Cause: Missing Authorization: The user does not have the required authorization object assigned to their user profile to execute the report. Role Assignment: The user may not be assigned to the correct role that includes the necessary permissions for the report. Profile Issues: The user’s authorization profile may not be updated or may be incorrectly configured.
Solution: Check User Authorizations: Use transaction code SU53 immediately after the error occurs. This will show you the last authorization check and can help identify which specific authorization is missing. Review User Roles: Go to transaction code SU01 and enter the user ID. Check the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPAPO/PDEM845 Basic unit of measure in Order &1 Item &2 Sched.Line &3 is not determined
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM844 Selection does not return any records to delete from Demand History table
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM847 Block &1 does not return any records to delete from SD Demand table
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM848 Block &1 does not return any records to save in the SD Demand table
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.