Message type: E = Error
Message class:  /SAPAPO/MSDP_SEASON -  
Message number: 102
Message text: No data on periods outside of initialization period of &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/MSDP_SEASON102 indicates that there is no data available for the periods outside of the initialization period specified in the message. This typically occurs in the context of SAP Advanced Planning and Optimization (APO) when working with seasonal data or planning scenarios.
Cause: Initialization Period: The error suggests that the planning or forecasting process is trying to access data for periods that are not included in the initialization period. The initialization period is the timeframe for which historical data is available and used for forecasting. Data Availability: There may be no historical data or insufficient data for the periods being queried, leading to the inability to generate forecasts or plans.
Configuration Issues: There might be issues with the configuration of the planning area or the data model that restricts access to certain periods.
Solution: Check Initialization Period: Review the initialization period settings in your planning area. Ensure that the periods you are trying
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPAPO/MSDP_SEASON101 Assignment rules are not unique in level &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/MSDP_SEASON100 All characteristics combinations have a seasonal pattern assigned
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/MSDP_SEASON103 No season details available outside of initialization period &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/MSDP_SEASON104 Select planning object structure
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.