The issue could observe if there is some issue at the backend in resource creation. If someone is facing a similar issue feel free to open a support ticket with us and share your APIM instance name and the region where you have deployed the resource. If you don't have the support plan then feel free to create a new Q&A request and share the APIM instance name, the region where you have deployed the resource, and the current status of the resource to assist you further.
Unable to delete API Management Resource

Kevin Delval
186
Reputation points
A few weeks ago I created an API Management resource to try it out. It's been stuck in Activating status ever since. I'd like to delete it but Azure won't allow me to do so since the resource is considered to be 'transitioning' between states.
What could be the reason why it's stuck? I haven't done anything to or with the resource since simply following the Wizard to create it.