create inventory item api returns 204 but no new item in my sandbox account
I've created a sandbox account, got the oauth token generated, built a quick api test setup and it seems to send fine with at 204 response (which seems odd that its not success etc). But I cant find an item anywhere in that sandbox account. I have the same issue if I do this via the test tool at (
https://developer.ebay.com/my/api_test_tool). 204 response and no new item. What am I missing?