# The findJiraIssueAssignableUsers tool stops working

Calls to MCP tool findJiraIssueAssignableUsers on Atlassian MCP stopped working on September 22, 2026.

On September 22, 2026, the tool findJiraIssueAssignableUsers will be removed. Calls to MCP tool findJiraIssueAssignableUsers will fail after that date.

## What to use instead

Call listJiraIssueAssignableUsers instead, as the tool was renamed.

- API: Atlassian MCP (mcp.atlassian.com)
- Kind: Endpoint removal
- Takes effect: September 22, 2026
- Calls after that day: fail
- Calls it hits: `MCP tool findJiraIssueAssignableUsers`
- Source: [Announcement](https://developer.atlassian.com/cloud/rovo-mcp/changelog/)
- Verified: October 29, 2026, against Atlassian MCP's own pages
- Page: https://www.okapi.bot/providers/atlassian-mcp/breaking-changes/the-findjiraissueassignableusers-tool-stops-working/

## Atlassian MCP's words

> The tool has now been renamed to listJiraIssueAssignableUsers

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent