Message type: E = Error
Message class: 5N - HR NL: Error Messages for Infotype Module Pools (NL)
Message number: 305
Message text: You have marked more than one activity; this is not allowed
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5N305
- You have marked more than one activity; this is not allowed ?The SAP error message 5N305, "You have marked more than one activity; this is not allowed," typically occurs in the context of project management or activity planning within SAP, particularly in modules like SAP Project System (PS) or SAP Controlling (CO). This error indicates that the user has attempted to select or mark multiple activities when the system only allows for a single selection at a time.
Cause: Multiple Selections: The user has selected more than one activity in a list or table where only one selection is permitted. System Configuration: The configuration of the SAP system may restrict certain operations to single selections for data integrity or business logic reasons. User Error: The user may not be aware of the selection limitations and inadvertently selects multiple items.
Solution: Single Selection: Ensure that you only select one activity at a time. Deselect any additional activities before proceeding with the operation. Check User Interface: If you are using
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