Note that the Salesforce & HipChat Connector is only supported on the following platform.
HipChat Cloud only. HipChat Server is not supported yet.
Only per-room integrations is supported. Global integrations is not supported yet.
Salesforce Enterprise, Unlimited and Developer edition only.
Official support for Professional edition is coming soon. However, some features will not be available e.g. notification subscription which requires manual addition of Apex triggers. Some features may already work at this time.