Hi Mani,

I wanted to follow up on your earlier response regarding how Visibility Days behave in Odoo’s replenishment process.

To be honest, when I first read your explanation, I didn’t fully understand what you were pointing out — especially the subtle behavior of how Visibility Days only apply when there’s already a need on the current date. But after reading your post again more carefully, I finally see what you meant. Your analysis is spot-on.

At the same time, I started thinking about the underlying issue you seem to be facing — that Odoo fails to trigger early procurement when a manufactured product has a short production lead time, but contains components with long lead times. And I wondered if, instead of relying on Visibility Days, this might be an ideal case for using “Days to Prepare Manufacturing Order” (DTPMO) in the BoM.

Let me briefly explain what I mean, just in case this could be helpful.

When you set a value in the DTPMO field on the BoM — either manually or using the "Compute" button — Odoo will generate the MO that many days before the scheduled start date of manufacturing. This allows the MO to be created early enough to trigger timely procurement of long lead-time components. Importantly, it doesn’t change the MO’s scheduled production date itself — only the timing of its creation.

Here’s a simple example:

Product P has a Manufacturing Lead Time of 5 days

One of its components has a Vendor Lead Time of 90 days

If you set Days to Prepare MO = 90 on P’s BoM, Odoo will generate the MO 90 days before production begins

That MO, in turn, triggers the demand for the component early enough that the Purchase Order can be issued in time

So even though the final product only takes 5 days to produce, Odoo is made aware that it must plan far in advance to secure the required components.

In short, DTPMO gives Odoo the head-start it needs to work around the limitation of just-in-time MO generation. It might be a simple setting, but in cases like yours, it can make a major difference in whether planning succeeds or fails.

If I’ve misunderstood your situation or offered a solution that doesn’t fit, I apologize — and I’d appreciate any correction or clarification. Thank you again for your insights; your post helped me understand the issue much better.

Best regards,
Katsuhiko Nitta