1. Reason for Cancellation: Explanation of why the purchase order is being cancelled - include if required by the original terms or if beneficial for business relationship

2. Legal Authority: Reference to specific contract terms or legal provisions allowing for cancellation - include if there might be dispute about right to cancel

3. Financial Implications: Statement about any payments made, refunds due, or financial settlements - include if there are outstanding financial matters

4. Next Steps: Instructions or requests for any required actions from the recipient - include if specific actions are needed

5. Alternative Arrangements: Proposals for alternative solutions or future dealings - include if maintaining business relationship is important

6. Return of Goods: Instructions regarding any goods already delivered - include if goods have been received

1. Copy of Original Purchase Order: Attach a copy of the original purchase order being cancelled

2. Delivery Notes: If goods were partially delivered, include relevant delivery documentation

3. Payment Records: If payments were made, attach proof of payment or refund details