Message type: E = Error
Message class:  /SAPCEM/DISPO -  
Message number: 009
Message text: Please enter a class or equipment
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.
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The SAP error message /SAPCEM/DISPO009 typically indicates that the system requires a class or equipment to be specified in a certain transaction or process, but it has not been provided. This error is often encountered in the context of SAP Plant Maintenance (PM) or SAP Customer Service (CS) modules, where equipment or class information is essential for processing maintenance orders, notifications, or other related activities.
Cause: Missing Input: The user did not enter a class or equipment number in the relevant field. Incorrect Configuration: The system may be configured in a way that requires class or equipment information for certain transactions, and this requirement is not being met. Data Integrity Issues: There may be issues with the master data where the equipment or class is not properly defined or is inactive.
Solution: Enter Required Information: Ensure that you enter a valid class or equipment number in the required field before proceeding. Check if the equipment exists
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