Message type: E = Error
Message class:  M_OBOM_WB_GNRL - OEWB: allgemeine Fehlermeldungen 
Message number: 015
Message text: Enter a quantity
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The SAP error message M_OBOM_WB_GNRL015 with the description "Enter a quantity" typically occurs in the context of working with Bill of Materials (BOM) in SAP. This error indicates that a required quantity field has not been filled in when trying to create or modify a BOM.
Cause: The error is triggered when: You are trying to create or edit a BOM and have not entered a quantity for one or more components. The system requires a quantity to be specified for the BOM item, and it cannot proceed without this information.
Solution: To resolve this error, you should: Check the Quantity Field: Ensure that you have entered a valid quantity for all components in the BOM. This is usually found in the quantity field associated with each component. Review BOM Structure: If you are working with a multi-level BOM, ensure that all levels have the necessary quantities specified. Validation: After entering the required quantities, validate the BOM to ensure
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