Why aren't my purchase orders from my other connected system appearing in StockTrim?

We don't generally import visible purchase orders into StockTrim - since StockTrim is an order planning tool the workflow is to create purchase orders in StockTrim based on the suggestions on the order plan and then send them to your other system to be dealt with (sending to your supplier, updating on-order amounts etc).

The system does however read the purchase order history data behind the scenes, which is used to calculate your historic lead times, or calculate your on-order amounts in some cases.