Portal access to create new Defender for Identity instance

Copper Contributor

Hi all,


I have been trying to create a new Defender for Identity instance for a client, by going to, but get the "HTTP Error 400. The size of the request headers is too long" as described in this current active incident.


Is there any other way to setup a new instance, or do we have to wait until the portal access is fixed?



5 Replies
I have the same problem, did you manage to solve it?
best response confirmed by WingLam (Copper Contributor)
was able to access using the original URL

@viniciuscarmo many thanks Vinicius, I can access via <domain>

I wasn't asked to create an instance as in the docs, it just want straight into an identity instance.

Many thanks again.


You should be able to access and create the instance in, in the Settings menu -> Identities (or directly at

Thanks Martin, I do remember going into, and seeing the Defender for Identity settings in there.
I think where I got confused was that at no stage was I asked to "create an instance" (as in says in the docs), it seems the instance was automatically created.