Message type: E = Error
Message class:  /SAPAPO/VMI_APO -  
Message number: 012
Message text: Enter a sold-to party
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The SAP error message /SAPAPO/VMI_APO012 Enter a sold-to party typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when dealing with Vendor Managed Inventory (VMI) scenarios. This error indicates that a sold-to party (customer) has not been specified in the relevant transaction or configuration.
Cause: Missing Sold-to Party: The sold-to party field is required for the transaction you are trying to execute, but it has not been filled in.
Configuration Issues: There may be issues in the configuration of the VMI setup, where the sold-to party is not properly defined or linked to the relevant materials or products. Data Entry Error: The user may have overlooked entering the sold-to party in the transaction screen.
Solution: Enter Sold-to Party: Ensure that you enter a valid sold-to party in the relevant field. This is typically done in the transaction screen where you are processing the VMI data. Check Master Data: Verify that the sold-to party
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