Message type: E = Error
Message class: OE - IS-Oil: ITA/TPI messages
Message number: 301
Message text: Control structure &1 already used! Please specify a unique Control Struc
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OE301
- Control structure &1 already used! Please specify a unique Control Struc ?The SAP error message OE301, which states "Control structure &1 already used! Please specify a unique Control Structure," typically occurs in the context of controlling or managing cost centers, internal orders, or other organizational units within SAP. This error indicates that the control structure you are trying to create or modify is already in use or has been defined previously, and SAP requires a unique identifier for each control structure.
Cause: Duplicate Control Structure: The control structure you are trying to create or modify already exists in the system. Incorrect Input: You may have entered the control structure name incorrectly or are trying to use a name that is already assigned to another entity.
Configuration Issues: There may be issues in the configuration settings that lead to conflicts in control structure definitions.
Solution: Check Existing Control Structures: Navigate to the relevant transaction (e.g., OKB9 for controlling area settings) and check the list of existing control structures
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