Message type: E = Error
Message class:  UJA_JOB - Texts for messages in jobs 
Message number: 075
Message text: Copy of the model data started
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 UJA_JOB075, which states "Copy of the model data started," typically indicates that a job related to the copying of model data has been initiated. This message is not necessarily an error but rather an informational message indicating that a process is underway.
Cause: Job Execution: The message is generated when a job that copies model data (such as from a model to a planning area) is started. This could be part of a regular data maintenance process in SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO). System Configuration: The job may be triggered by a scheduled task or manually initiated by a user. Data Model Changes: If there have been changes to the data model, this job may be necessary to ensure that the latest model data is available for reporting or planning purposes.
Solution: Monitor Job Status: Check the status of the job in the job monitoring
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
UJA_JOB074 End the rollback of environment copy
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UJA_JOB073 An error occured; starting the rollback of environment copy
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UJA_JOB076 Copy of the model data ended
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UJA_JOB077 Creation of the model folder started
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.