Message type: E = Error
Message class: KO - Master data for CO orders
Message number: 306
Message text: Date & is not valid; check your entry
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KO306
- Date & is not valid; check your entry ?The SAP error message KO306 ("Date & is not valid; check your entry") typically occurs in the context of controlling (CO) or project systems (PS) when a user attempts to enter a date that is not recognized as valid by the system. This can happen in various transactions, such as when creating or modifying cost centers, internal orders, or project definitions. Causes of KO306 Error Invalid Date Format: The date entered may not conform to the expected format (e.g., DD/MM/YYYY or MM/DD/YYYY). Date Outside Valid Range: The date may fall outside the valid posting periods defined in the system. For example, if the date is in a closed fiscal year or period, it will trigger this error. System Settings: The system may have specific settings that restrict certain dates based on configuration (e.g., fiscal year variant settings). User Authorization: The user may not have the necessary authorizations to enter data for the specified date. Solutions to
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