Message type: E = Error
Message class:  /SAPAPO/PDEM -  
Message number: 135
Message text: Data realignment &1
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/PDEM135 Data realignment &1 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with data consistency or alignment in the planning environment. This error can arise during various processes, such as data uploads, planning runs, or when executing specific transactions related to demand planning or supply network planning.
Cause: The error message indicates that there is a problem with the data realignment process. This could be due to several reasons, including: Data Inconsistencies: There may be inconsistencies in the master data or transactional data that prevent the system from aligning the data correctly. Missing Data: Required data elements might be missing or not properly maintained in the system.
Configuration Issues: Incorrect configuration settings in the APO system can lead to data alignment problems. Version Conflicts: Conflicts between different versions of data or planning books can also trigger this error.
Solution: To resolve the /SAPAPO/PDEM135 error, you
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPAPO/PDEM134 Generation of step for new BOD assignment from &1 to &2 for InfoProv&3 &4
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM133 Trigger found for product &3 (service: &1 trigger: &2)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM136 Data reference for table/structure of InfoProvider &1 is initial
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/PDEM137 Error when determining current BOD (product &1; date &2), see below
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.