Hi There,

The Fixed Lead Time Horizon field is maintained for the plan item. I know that this is used for the MRP when generating the planned order.

I did a few round of testing by creating production order with planned start date or planned delivery date way beyond the Fixed Lead Time Horizon, Baan still did not use the fix lead time.

May I confirm that the Fixed Lead Time Horizon is only used for planned orders ?

Yes. i get this from help.

fixed lead-time horizon
The time period for which Enterprise Planning uses a fixed lead time to plan orders.
Planning with a fixed lead time is faster than planning on the basis of routing data, but the results are less precise.
The start date of the fixed lead-time horizon is defined in the plan-item settings. The end date coincides with the end of the order horizon.
Before the fixed lead-time horizon, Enterprise Planning plans on the basis of routing data. Within the fixed lead-time horizon, Enterprise Planning plans using a fixed lead time.
If you need , you can use fixed duration for PRoduction Order.

Hi quelle,

Thanks for the confirmation.