Message type: E = Error
Message class:  CNV_DMC_SIN - Messages for s-innovations migration 
Message number: 180
Message text: In case of special stock 'O' for material &1 please enter a vendor
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The SAP error message CNV_DMC_SIN180 typically occurs during data migration or conversion processes, particularly when dealing with special stock types, such as special stock 'O' (which refers to consignment stock). This error indicates that for the specified material, a vendor must be entered in the system.
Cause: The error arises when the system expects a vendor to be associated with a material that is classified as special stock 'O'. This is because special stock types often require specific vendor information to manage the stock correctly, especially in scenarios involving consignment or third-party processing.
Solution: To resolve this error, you can follow these steps: Check Material Master Data: Go to the material master record for the specified material (using transaction code MM03). Ensure that the vendor information is correctly maintained in the purchasing view of the material master. Maintain Vendor Information: If the vendor is not maintained, you need to add the vendor information. You can do this by: Navigating to
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