channel_not_found when trying to upload a file on a slack thread

[dcarabott]

Jenkins and plugins versions report

Environment

```text Jenkins `2.454` slack-plugin `715.v1cfed1b_9c63c` ```

What Operating System are you using (both controller, and any agents involved in the problem)?

Linux

Reproduction steps

• Trigger slackUploadFile using the channelName (not id) for channel including the thread timestamp. Example: slackUploadFile(channel: "#channelName:1715686740.441889", filePath: "some path")

Expected Results

Correct file upload on the specified channel

Actual Results

Slack upload may have failed. Response: {"ok":false,"error":"channel_not_found"}

Anything else?

Can confirm the channel name is correct. This was working around 7 days ago (7th of May 2024). Updated to version 715.v1cfed1b_9c63c but the problem persists.

Forcing the channel id worked ok.

Example: slackUploadFile(channel: "#C066HJWF8KC:1715686740.441889", filePath: "${f.path}") (works ok)

Are you interested in contributing a fix?

No response

[dcarabott]

Added 2 scopes to the app config and it worked fine!

• channels:read
• groups:read