Hello Pierre,

These modes control how Odoo handles dependent work orders when you move an operation in the Gantt view:

• Manual Reschedule – Only the work order you move is affected. Dependent operations are not adjusted automatically and must be rescheduled manually.
• Auto-Reschedule (Use Buffer) – Odoo tries to absorb the change using any existing gap (buffer) between dependent operations. If the delay exceeds the available buffer, downstream work orders are pushed accordingly.
• Auto-Reschedule (Keep Buffer) – Odoo maintains the original gap between dependent operations and shifts downstream work orders while preserving that spacing.

Regarding the buffer, it is typically the planned time gap between dependent work orders generated by scheduling, rather than a separate parameter that you explicitly configure.

For these modes to work properly, make sure:

• Work Order Dependencies are enabled.
• Operations are linked through Blocked By relationships in the BoM routing.
• Work centers and operation durations are configured realistically.

Example:

• Operation A: Cutting (08:00–10:00)
• Operation B: Painting (11:00–12:00)

If Cutting is moved later:

• Manual: Painting remains unchanged.
• Use Buffer: Odoo first consumes the 1-hour gap before moving Painting.
• Keep Buffer: Painting is moved while preserving the 1-hour gap.

Hope this works for you! If you need any help implementing this or want a more optimized approach, feel free to reach out for further discussion.

Regards,

Zehntech Technologies Inc.

santosh.sekwadia@zehntech.com