Search using Order Number

As the title says, I’m trying to search for an order by using an order number. My client stores their orders on multiple platforms, and the only common number between them is the order number. I have tried many ways to make it work, but can’t seem to have any success. Is it currently possible to search via the order number? If so, how would I do that?

Hey Matt,
This works for me:
query {
orders(order_number: “EXAMPLE_ORDER_NUM”) {
data {
edges {
node {