@Vimukthi Mahakumbura Thank you.
                
     
                                    
            Hi @ronhu,
 
In IFS Apps 10, undoing a delivery for supplier-connected or direct delivery component orders is restricted if:
- The delivery originates from a supplier (Purchase-to-Order),
- And the item has not yet been invoiced or charged.
This is because the system can't safely reverse the flow when:
- There’s no financial/charging event recorded yet,
- And the supplier delivery is partially fulfilled.
IFS enforces this to maintain transactional consistency between procurement and sales flows.
 
Recommended Resolutions:
 
1. Preferred Option: Use RMA (Return Material Authorization)
- 	Since undo is restricted, the correct functional route is to process a return using: 
- 	This maintains traceability and financial accuracy, especially for supplier-sourced deliveries 
 
Scenario:
- Supplier Material + not charged → use RMA to return
- Charged items + wrong quantity → use credit not + RMA
 
                
     
                                    
            @Vimukthi Mahakumbura Many thanks.