Title: Rovo MCP cross-product search returns 403 “app is not installed on this instance”, API works

[Jimmy Delaire]

Hello,

I’m administering a Jira Cloud Free site: jimmydelaire.atlassian.net.

I am testing the official Atlassian Rovo MCP integration from Codex Desktop.

Current behavior:

• The Atlassian Rovo connector is available in Codex.

• A Rovo cross-product search for a Jira issue returns HTTP 403.

• The returned message is: “app is not installed on this instance”.

• The direct Jira API connector can access Jira correctly.

• No Jira changes were made during testing.

Relevant configuration:

• Rovo MCP Server is available in Atlassian Administration.

• OAuth 2.1 is the intended authentication method.

• No custom domain was added.

• I understand that chatgpt.com is an Atlassian-supported domain allowed by default.

Could you clarify:

1. What “app is not installed on this instance” means for the official Atlassian Rovo MCP server?

2. Is there an organization, site, product, or Rovo setting required to enable cross-product Rovo search for a Jira Cloud Free site?

3. Why can the direct Jira API access work while the Rovo search capability returns 403?

4. Which read-only diagnostic or admin screen should I check next to identify the missing activation?

I can provide redacted screenshots of the Rovo MCP Server settings and the 403 result if useful.

Thank you.