Message type: E = Error
Message class:  /SAPAPO/PDEM_GEN_SRV -  
Message number: 004
Message text: Error when generating a time series-DAO instance
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/PDEM_GEN_SRV004 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue generating a time series for a Demand Planning (DP) or Supply Network Planning (SNP) instance. This error can arise due to various reasons, including data inconsistencies, configuration issues, or problems with the underlying database. Causes: Data Inconsistencies: Missing or incorrect data in the master data or transaction data can lead to this error. For example, if the time series data is incomplete or if there are issues with the key figures.
Configuration Issues: Incorrect settings in the planning area or planning book can cause problems when generating time series data. Database Issues: Problems with the database, such as locks or corruption, can prevent the generation of time series data. Authorization Issues: Lack of proper authorizations for the user executing the time series generation can also lead to this error. Technical Issues: Bugs or issues
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPAPO/PDEM_GEN_SRV003 Error when generating a historical data-DAO instance
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM_GEN_SRV002 Error when reading master data of package (worklist)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM_GEN_SRV005 Error when reading historical data
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM_GEN_SRV006 Error when generating historical data
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.