Update purchase order item

Updates a purchase order item's name, sequence, or percentage. The item amount is automatically recalculated when the percentage changes.

Important Notes

• Changing the percentage will trigger automatic recalculation of the item amount
• The total of all item percentages must still sum to 100% after the update
• Items can only be updated if the purchase order is not in completed status
• For ByMilestone type purchase orders, the name field is required
• The sequence must remain unique within the purchase order

Authorization

• User must be a member of the company that owns the purchase order
• User must have appropriate permissions (admin, owner, or member)

Use Cases

1. Adjust percentages: Rebalance payment stages
2. Update item names: Clarify milestone descriptions
3. Reorder items: Change sequence numbers