UK eBay API Questions

I’m trying to build a system for a client of mine where it goes into eBay pulls out all their “Paid and Waiting to Dispatch” orders. After selecting a specific order, the system generates a postage label then it would need to go back into eBay and amend that order as “shipped” and inster the tracking number.

I habve got the postage label working fine and automatically accessing Despatch Express, but I cannot get eBay’s API to work.

Does anyone know if a, this is possible with the UK eBay and b, of any good tutorials regarding the eBay API?

Ta
Ian