Purchase Order to Pending Order

Hello,

When I click on “Purchase Order” instead of buying it¨s showing me in the pending orders with a “Buy” option again.

Why is it in the pending orders even though I clicked on “Review Order” and then “Purchase Order”.

Do I need to click on the “Buy” option in the pending orders as well?

Please let me know

Are you sure the relevant market was open at the time?