Message type: E = Error
Message class:  /SAPAPO/FOT -  
Message number: 809
Message text: Check total quantity of child order
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The SAP error message /SAPAPO/FOT809 Check total quantity of child order typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is a discrepancy in the total quantity of a child order compared to what is expected. This error is often related to the planning and execution of production orders, where the system checks the total quantity of components or sub-orders against the parent order.
Cause: Quantity Mismatch: The total quantity of the child orders does not match the expected quantity defined in the parent order. This can happen if there are changes in the production plan or if orders are not updated correctly. Order Status: The status of the child orders may not allow for the expected quantities to be processed (e.g., if they are partially confirmed or have been deleted).
Configuration Issues: There may be issues with the configuration of the order types or the way the system
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