Where can I find the item lead time?. thanks advance

which one purchase/Inventory/Sales lead time?

You can find these setup on relevant module parameter and in the item default/site specific order settings.

I can understand the Purchase , sales lead time . What does it mean of Inventory lead time ?

Transfer or Production where there is no routing deployed.

If you use Trade Agreements, you can also set it up here, which will over-ride the site specific order leadtimes.

Thanks John about the new functionality of Lead time can setup in Trade agreements also.