Message type: E = Error
Message class: UD - EDM - Enterprise Data Model
Message number: 303
Message text: Create only possible in maintenance mode
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UD303
- Create only possible in maintenance mode ?The SAP error message UD303 ("Create only possible in maintenance mode") typically occurs when you attempt to create or modify certain objects or data in SAP while the system is not in maintenance mode. This is a safeguard to prevent changes during regular operational hours, ensuring data integrity and system stability.
Cause: System Configuration: The system is configured to allow changes only in maintenance mode to prevent conflicts and ensure data consistency. User Permissions: The user may not have the necessary permissions to perform the action outside of maintenance mode. Transaction Context: The transaction you are trying to execute is restricted to maintenance mode due to its nature (e.g., creating or modifying certain master data).
Solution: Switch to Maintenance Mode: If you have the necessary authorizations, switch the system to maintenance mode. This can usually be done by an administrator or through specific transaction codes (e.g., using transaction SM37 to check job statuses or SM12 for
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