[BUG] Monitoring channels not listing in Monitoring alert/action config in UI (3.6.0)

[jijojohn1985]

Describe the bug

OpenSearch version : 3.6.0
Running as docker containers

When i am trying to cerate a monitoring , Under Triggers/actions , none of the channels are listing, but i have 3 channels (1 teams , 1 slack and 1 email). Tried with various options in UI, none of them helped.

If i am creating using API via dev console i am able to cerate monitor and associate channels/actions to it, also if we try to edit the monitoring whihc is created from api , it will still not list the channels.

I am using the admin user, i have also tried creating another user with admin rights

Creating from UI (No channels showing in action)

Channel List

Editing a monitor created using API

Related component

Other

To Reproduce

1. Deploy version 3.6.0 (both OpenSearch and dashboard) in docker
2. Create channels
3. Create monitor and try to associate channels

Expected behavior

Monitoring channels not listing in Monitoring alert/action config in UI

Additional Details

Plugins
Please list all plugins currently enabled.

Screenshots
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Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Dashboard Logs when trying to list the channels
{"type":"response","@timestamp":"2026-05-21T18:11:26Z","tags":[],"pid":1,"method":"get","statusCode":400,"req":{"url":"/api/notifications/features","routePath":"/api/notifications/features","method":"get","headers":{"x-forwarded-for":"39.100.123.20","x-forwarded-proto":"https","x-forwarded-port":"443","host":"opensearch-internal.com","x-amzn-trace-id":"Root=1-6a0f4ace-4b3ea80b796e32476d2959db","user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0","accept":"/","accept-language":"en-US,en;q=0.9","accept-encoding":"gzip, deflate, br, zstd","referer":"https://opensearch-internal.com/app/monitors","content-type":"application/json","osd-version":"3.6.0","osd-xsrf":"osd-fetch","sec-fetch-dest":"empty","sec-fetch-mode":"cors","sec-fetch-site":"same-origin","priority":"u=4"},"remoteAddress":"10.20.131.4","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0","referer":"https://opensearch-internal.com/app/monitors"},"res":{"statusCode":400,"responseTime":5,"contentLength":9},"message":"GET /api/notifications/features 400 5ms - 9.0B"}

{"type":"response","@timestamp":"2026-05-21T18:11:27Z","tags":[],"pid":1,"method":"get","statusCode":400,"req":{"url":"/api/notifications/get_configs?from_index=0&max_items=5000&sort_field=name&sort_order=asc","routePath":"/api/notifications/get_configs","method":"get","headers":{"x-forwarded-for":"39.100.123.20","x-forwarded-proto":"https","x-forwarded-port":"443","host":"opensearch-internal.com","x-amzn-trace-id":"Root=1-6a0f4acf-0ac6062862d2538a1628f25b","user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0","accept":"/","accept-language":"en-US,en;q=0.9","accept-encoding":"gzip, deflate, br, zstd","referer":"https://opensearch-internal.com/app/monitors","content-type":"application/json","osd-version":"3.6.0","osd-xsrf":"osd-fetch","sec-fetch-dest":"empty","sec-fetch-mode":"cors","sec-fetch-site":"same-origin","priority":"u=4"},"remoteAddress":"10.20.131.4","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0","referer":"https://opensearch-internal.com/app/monitors"},"res":{"statusCode":400,"responseTime":5,"contentLength":9},"message":"GET /api/notifications/get_configs?from_index=0&max_items=5000&sort_field=name&sort_order=asc 400 5ms - 9.0B"}

[jijojohn1985]

This issue is fixed after removing the data_source.enabled:true from dashboard yaml

https://forum.opensearch.org/t/channels-not-listing-in-opensearch-alerting-actions/28084/7