Message type: E = Error
Message class:  /SAPAPO/PPDS_AFR -  
Message number: 001
Message text: References found of type: &1
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The SAP error message /SAPAPO/PPDS_AFR001 References found of type: &1 typically occurs in the context of Advanced Planning and Optimization (APO) within SAP, particularly when dealing with the Production Planning and Detailed Scheduling (PP/DS) module. This error indicates that there are references or dependencies that are preventing a certain action from being completed, such as deleting or changing a planning object.
Cause: The error message is triggered when you attempt to perform an operation (like deleting or modifying a planning object) that is not allowed because there are existing references to that object. The &1 in the message will be replaced with the specific type of reference that is causing the issue, such as a production order, a planned order, or another planning object.
Solution: To resolve this error, you can follow these steps: Identify the Reference: Check the specific type of reference indicated by &1 in the error message. This will give you insight
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