Troubleshooting ServiceNow to JIRA Integration Error: 'Cannot establish connection, StatusCode: 400

[Jitendra Diwak1]

Hi @clarkembers,

Could you validate the endpoint as credentials. 400 means it is not getting the exact endpoint and credentils.

Please accept my solution if it works for or thumps up

Thanks

Jitendra

[clarkembers]

Does an HTTP status code 400 with Response "Invalid Credentials" Indicate the the HTTP Client Is Hitting the Endpoint

[Jitendra Diwak1]

Hi @clarkembers,

HTTP 400 Bad Request (SSL certificate error) Response to inbound API Calls to the Instance When Using mTLS (HTTPS Mutual Authentication) Please read further this below:

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0960308#:~:text=However%20Ser....

Please accept my solution if it works for or thumps up

Thanks

Jitendra

[Josh Gold]

@clarkembers it's an authentication issue. Yes, it's hitting the endpoint, but it's not working because the credentials used are either incorrect or insufficient. Does the Jira user account have the right permission to access projects and issues? If it's a new service account, for example, just double-check to make sure you gave it the right credentials.

You can also try looking for the Script Include: "Connector" within the "Atlassian Jira Integrations Common" scope. Commenting out the line containing option_attachments_changed might work.