Transport Days
Transport Days
Include transportation lead time in delivery date promising
1. What Are Transport Days?
Transport Days represent the time required for goods to physically move from one location to another. They are a critical input in Dynamics 365 Supply Chain Management for building accurate delivery promises.
- Applies to sales orders and transfer orders.
- Influences the confirmed ship or receipt date.
- Ensures accurate and achievable delivery commitments to customers.
Think of Transport Days as the road, not the warehouse
ATP tells you when the goods leave. Transport Days tell you how long the truck is on the road. Add the two together and you get the real customer receipt date.
2. How Transport Days Work
The system takes the ship or receipt date calculated by the delivery date control method (ATP, Sales Lead Time, ATP + Issue Margin, or CTP), then adds Transport Days on top of it to produce the final confirmed delivery date.
3. Example — Sales Order with Transport Days
ATP Ship Date + 3 Days
Transport Days = 18-May-2026
Confirmed Ship Date
Key points
- Transport Days are added at the line level, not the header level.
- If Transport Days change, the confirmed date is recalculated.
- Transport Days consider the shipping route, carrier, and transit time.
- Used for both intercompany and external customer deliveries.
4. Where Transport Days Are Maintained
Transport Days are maintained across several setup areas in D365 SCM. Each supports a different level of precision.
Warehouse management > Setup > Shipping > Transportation routes
Maintain routes between locations and the default transport days for each combination.
Fleet management > Setup > Routes
Define routes, carriers, and transit times.
Carrier transit times
Maintain transit time by carrier and mode of transport.
Customer / Vendor / Company accounts
Default routes or transport days can be specified per party.
Sales order / Transfer order line
Transport Days can be overridden on the line if required for a specific shipment.
5. Impact on Delivery Date Control Methods
Transport Days are considered with all delivery date control methods. The formula changes only in what produces the base Ship Date.
| Delivery Date Control Method | How Transport Days Are Used |
|---|---|
| Sales Lead Time | Ship Date = Order Date + Sales Lead Time + Transport Days |
| ATP (Available-to-Promise) | Ship Date = ATP Date + Transport Days |
| ATP + Issue Margin | Ship Date = ATP Date + Issue Margin + Transport Days |
| CTP (Capable-to-Promise) | Ship Date = CTP Date + Transport Days |
| CTP for Planning Optimization | Ship Date = Planning Optimization CTP Date + Transport Days |
6. Example — Transfer Order
Transport Days are not limited to sales orders. They also apply to inventory movements between warehouses.
Site A → Transport Days
5 Days → To Warehouse
Site B → Planned Receive Date
The system calculates the planned receive date at Site B by adding 5 transport days to the ship date from Site A.
7. Best Practices
Maintain Accurate Routes
Keep transportation routes and transit times up to date.
Use Default Values
Set default transport days where possible to avoid manual entry.
Review Regularly
Review and update transport days periodically to reflect real conditions.
Coordinate with Logistics
Work with logistics teams for realistic transit time estimates.
Monitor Impact
Check how transport days affect delivery promises and customer service.
8. Important Notes
Key Takeaway
Transport Days ensure that delivery promises are realistic by considering the actual time required to move goods from one location to another.
SO Transport Days
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