Add approval, supplier processing, production, transportation, receiving, and contingency time to estimate procurement order transit.
Total transit time = Internal approval + Supplier processing + Production or picking + Transportation + Receiving and inspection + Contingency buffer
All entries use calendar days. Core process time excludes the contingency buffer.
The result is the planning time to allow for a procurement order under the entered assumptions. The stage breakdown helps distinguish process time from deliberate contingency.
This is a planning estimate. Weekends, holidays, capacity constraints, and unexpected border holds must be reflected in the entered stage values.
Using internal approval 2 days, supplier processing 3 days, production or picking 8 days, transportation 5 days, receiving and inspection 1 days, contingency buffer 2 days gives 21 days. Core time is 19 days, the buffer is 9.5%, and the total equals 3.00 weeks.
Yes. Include transportation when the goal is elapsed time from order release to receipt; otherwise the estimate stops too early.
Inputs are calendar days. Convert working-day estimates before entry if the supplier or carrier quotes business days.
Enter zero for customs when it does not apply, but keep receiving or inspection time in the appropriate stage.
A separate buffer makes planned protection visible and prevents it from being confused with normal operating time.
Use it as a planning input, then account for the actual order date, holidays, cutoff times, and supplier commitments.
| Variable | Meaning |
|---|---|
| Internal approval | Calendar days entered for internal approval. |
| Supplier processing | Calendar days entered for supplier processing. |
| Production or picking | Calendar days entered for production or picking. |
| Transportation | Calendar days entered for transportation. |
| Receiving and inspection | Calendar days entered for receiving and inspection. |
| Contingency buffer | Calendar days entered for contingency buffer. |