Blog Slack Verde

Click your workspace name in Slack on a computer and choose Sign in on mobile to get a QR code for the phone app. We decoded the code to see what it holds and opened it three times to see whether it changes.

Slack has no button that exports one channel's member list. We tested the workspace member export, a short API script that writes one channel's members to CSV, and the member list inside a standard export.

Click your workspace name at the top left of Slack and the menu shows your workspace URL. We checked five places it appears, the Find your team flow, and what a wrong URL shows.

Click the star next to the channel name, or right-click a DM and pick Star conversation. We starred a channel and a DM, collapsed the Starred section, and checked what the Free plan allows.

Preferences > Mark as read decides where a channel opens and whether opening it clears the unread. We posted 30 messages and opened the channel under each option, then tried Esc and Shift+Esc.

Slack's notification settings no longer have a reactions switch. We had a bot react to our messages, then hid the reactions with the Activity filter and the Mentions tab, and tried the old hidden setting.

Slack has no download-all button for a channel. We uploaded 8 files, checked what the Files tab and search show, and ran a files.list script that saved all 8, after it first found only 4.

Use /remove @name in the channel, the channel details window, or conversations.kick. We tried all three, checked what the removed member could still do, and what the channel saw.

Remove an app from one channel with /remove or channel details, or uninstall it from the workspace in Manage apps. We did both with a test app and checked its tokens, messages and files afterwards.

Slack has no Copy thread button. We selected a 6-reply thread, pasted it, and compared that with Copy message, Copy link and a short conversations.replies script that writes Markdown.

Directories > Channels lists every public channel in the workspace, joined or not. We checked what it shows, what the Private and Archived filters do, and whether an Owner can see a private channel they are not in.

Each Slack channel has its own notification setting under the bell icon: All new posts, Just mentions, or Mute and hide. We set three channels one way each and had a bot post into all of them.

The DMs tab lists your direct messages with people. App DMs, Slackbot and DMs with deleted accounts sit elsewhere. We compared the tab with the full list the Slack API returned.

We uploaded images to a Slack test channel and then switched each image setting off, ran /collapse, and posted from a bot that was not in the channel. Five causes, each reproduced.

Your own name under Direct messages opens a private DM with yourself. We sent it a note, a file, a scheduled message and a reminder, and checked which ones raised a badge.

We added three Slack keywords and had a bot post 12 test messages. Capitals and links matched; plurals, longer words, muted channels and unfollowed threads did not.

Only a workspace owner or admin can hide email addresses in Slack. We switched Email Display to No one, viewed a profile as a coworker, and read the same profile through the API.

Slack admins can cap message editing at 1 minute to 1 week, or turn it off. We set the 1-minute limit and timed when the Edit item and the API stopped working.

We uploaded four files to Slack and downloaded them again. The PNG and MP4 came back byte for byte, the JPEG came back re-encoded without its EXIF, and the chat only ever shows a 1024 px preview.

We set a 12-frame animated GIF as a Slack profile photo and downloaded every size Slack made. All of them were still images, frame 1 only.

Slack keeps your recent searches on its servers, so they follow you to every device. We found where to delete them, and the one way the delete button worked for us.

Slack has no Move option for messages. We forwarded a message, a thread and a file to a new channel, deleted the original, and checked what the copy kept.

We deleted our own DM messages, tried to delete the other side's, closed the conversation with /close and reopened it. Here is what each step removed.

We replied in a Slack thread with Also send to channel ticked, removed the channel copy, deleted another, and sent one through the API. Here is what each step did.

We set up a weekday 9:30 standup in a free Slack workspace three ways: a /remind reminder, Workflow Builder, and a short script that posts the questions and collects the thread replies.

We added, renamed, moved, hid and deleted the tabs under a channel name in Slack web on the Free plan, and compared them with the tabs in a DM.

Slack has no bulk leave button. We made 12 test channels and left them with the sidebar menu, the channel browser, /leave and a 30-line script, and timed each way.

As the owner of a free-plan workspace we deleted an app's message, a webhook message and two system messages, in Slack web and with the API, and checked which settings exist.

We wrote drafts in a channel, a thread and a DM in Slack web, then scheduled, sent, archived and left, and checked Drafts & sent and Slack's API after each step.

We marked messages unread in a channel, a DM and a thread in Slack web, read the read state back from the API, and timed what clears it.