I will soon have a self-transfer at AMS, arriving from LHR on British Airways and continuing to TPE on EVA Air, both non-Schengen. I have two separate tickets.
I was initially planning to take cabin luggage only so that I can easily remain airside and walk to the next gate, but I am now thinking I might want to check my bag instead.
I found this page on the Schiphol website which says:
...if you’re travelling on two separate tickets [...] your baggage will be delivered to baggage reclaim area. All you need to do is collect your baggage from the carousel and check it in again. For more information, please visit your airline transfer desk.
This seems to suggest that it is possible to self-transfer baggage without going through customs. However the linked page about transfer desks only talks about issuing boarding passes and sourcing tickets etc, and has no mention of baggage. Additionally, I can't find any information online about an EVA Air transfer desk.
If I were to check my bag on my British Airways flight from Heathrow, what steps would I need to take to get it checked with EVA Air?