3347401 - Error: "Delivery ID :cancellation failed; some serial numbers cannot be removed"

You are trying to cancel outbound delivery however system throws an error:-

Delivery ID: cancellation failed; some serial numbers cannot be removed .

SAP Business ByDesign

1. Go to Outbound Deliveries work center.
2. Go to Outbound Deliveries view.
3. Search required Delivery ID.
4. Select and choose Edit.
5. Choose Actions -> Cancel.
6. Now error triggered as 
   Delivery ID: cancellation failed; some serial numbers cannot be removed 

Since Outbound Delivery is with status Released while cancelling hence serial numbers inventory status is Issued to Customer hence system throws error.

Correct way of cancelling an OD

1. Go to Outbound Logistics work center.
2. Go to Outbound Deliveries view.
3. Find relevant Outbound Delivery ID and first perform Undo-release for OD
4. Perform save.
5. Once it is done, perform adjustment confirmation against warehouse order
6. Then cancel the required Outbound Delivery ID.

Note : If its an old document, keep relevant accounting period open to process the document.

https://launchpad.support.sap.com/#/notes/1850511

https://launchpad.support.sap.com/#/notes/3066550

Adjustment confirmation, Delivery ID :cancellation failed; some serial numbers cannot be removed, undo-release, cancel outbound delivery, serial number. , KBA , AP-ODP-OD , Outbound Delivery , Known Error