Can’t get sell order from player stations. With buy orders everything works fine.
On NPC stations in Jita everything works correctly.
What could be the problem?
You need to use the Structure variant of the market orders function, requires the id of the station and a signed in character for the ACL, where as the public market orders ones is a region only function for npc stations (and completely public ACL structures).
The buy orders are jumps > 1 so they become visible in the public endpoint. Hope this info helps.
I’d also recommend the _STATS version as it allows you to call .buy.max and .sell.min for the