Checklist:
When users try to create a service instance with using cf CLI, you fail to do it with the error as below.
$ cf create-service app-autoscaler standard my-second-autoscaler
Creating service instance my-second-autoscaler in org XXX / space YYY as ZZZZZZ...
FAILED
Server error, status code: 409, error code: 10001, message: Service broker error: Service Instance Already Exists In Space
This issue happens when you try to create multiple service instances for specific service in the same space but the service does not allow this.
Some services restrict you to only creating one service instance in each space. This is an arbitrary restriction implemented by the service broker's author. If you need to create a second service instances of this service, you can do so by moving to a different space and creating the instance in that space.