Products/Variants

• Products → Customers
  • Lead Time: The time required to provide this product for a customer.
    • Example: 1d for next day delivery.
    • Example: 21d for delivery in 3 weeks (= 21 days).
• Products → Suppliers → Supplier
  • Lead Time (per supplier): The time a supplier needs to provide this product.
    • Example: 1d for next day delivery.
    • Example: 14d for delivery in two weeks (= 14 days).
• Variants → Production → Lead Times
  • Lead time (per Bill of Material): The time required to produce this product using the assigned BOM (Bill of Material).
    • Example: 3d if the production team requires 3 days to produce the product.

Purchase

• Purchase
  • Purchase Date: The date when a purchase is commissioned.
• Purchase Requests
  • Best Purchase Date: The best date to commission a purchase. It is determined automatically based on various lead times. The purchase should be commissioned on this date to avoid delays on downstream processes (Production, Sales).
  • Expected Supply Date: The date when a shipment is expected. This field is calculated based on supplier lead times.

Inventory & Stock

• Customer Shipments
  • Planned Date: The customer shipment is planned for this date. This field is also displayed as shipping date on sale lines.
  • Effective Date: The customer shipment was fulfilled on this date.
• Supplier Shipments
  • Planned Date: The supplier shipment is awaited for this date.
  • Effective Date: The supplier shipment was delivered on this date.

Production

• Planned Date: The completion of the production is planned for this date.
• Planned Start Date: The production should be started on this date to finish on time (Planned Date = Planned Start Date + Production Lead Time)

Sales

• Sale Date: The sale is done on this date. The customer signed the quotation.
• Shipping Date (per sale line): The date of the earliest possible shipment. This field is calculated automatically.

Concrete Example

The figure below uses concrete dates for the generic example above.

The following times are used:

• Products → Customers: The lead time for Device is 4 weeks.
• Variants → Production: The lead time to produce Device is 4 days.
• Variants → Suppliers: The lead time to purchase Purchase Part 1 is 1 week.
• Variants → Production: The lead time to produce Production Part 1 is 2 days.
• Variants → Production: The lead time to produce Production Part 2 is 2 weeks.

The following dates are calculated:

• The Device is sold on 29.03.
• The Shipment Date is therefore 26.04.
• The production of Device starts on 21.04. and ends on 25.04.
• The best purchase date for Purchase Part 1 is calculated as 14.04. The shipment is awaited on 21.04.
• The production of Production Part 1 starts on 18.04. and ends on 20.04.
• The production of Production Part 2 starts on 06.04. and ends on 20.04.
• Tryton uses a 1 day buffer period for productions.