Slack Green 블로그
원격 근무, Slack 생산성 및 온라인 존재 유지에 대한 전문가 인사이트
모든 게시물
개발자
가이드
템플릿
비교
문제 해결
아이디어
자주 묻는 질문
튜토리얼
관리자
팁
제품
Excel이나 Google 스프레드시트의 셀을 복사해 Slack 메시지에 붙여 넣으면 탭으로 구분된 텍스트가 진짜 표가 됩니다. 한도는 20열, 100행, 10,000자(2026년 10월 6일 시험). 코드 블록, 캔버스 표, Block Kit table block과 시험하며 만난 오류도 정리했습니다.
Slack Green Team
Oct 7
slack
서식
We uploaded six workspace icons to a test Slack workspace: 100 px, 1024 px, a wide image, a transparent PNG and two oversize files. What Slack accepted, what it stored, and how to remove an icon.
Slack Green Team
Oct 7
slack admin
slack workspace
We renamed a free-plan Slack workspace and watched what changed: the sidebar, the search box and the default icon updated in an open tab within seconds, and the URL stayed the same.
Slack Green Team
Oct 7
slack admin
slack workspace
The topic sits in the channel header; the description shows in the channel intro and the channel browser. We set both in the Slack UI and with conversations.setTopic and setPurpose and measured the limits.
Slack Green Team
Oct 7
slack channels
slack api
Seven ways people fake an active Slack status, which ones hold up, and the thing that gives most people away. It isn't the dot.
Sieun
Oct 7
slack
presence
A normal workday has about five moments where Slack flips you to away. Here's each one, in order, and the cheapest fix for it.
Sijin
Oct 7
slack
presence
Slack only has two availability states, and neither one is yellow. If you see a yellow dot, it's a theme, an emoji, or a different app.
Sijin
Oct 7
slack
faq
The Slack Calls API shows a call from your own video or phone service as a card in Slack. We ran calls.add, the call block, participants and calls.end in a test workspace and list every response and error.
Slack Green Team
Oct 6
slack
api
Slack has no download or export button for canvases. We checked every menu on a test canvas, used Print canvas for PDF, and turned the API's HTML download into clean Markdown with a script we ran.
Slack Green Team
Oct 6
slack
canvas
Slack forwards one message at a time. We checked the message menu, shift-click and the forward dialog, then tested three ways to move 10 messages at once: a thread, a copied range, and a script that posts links.
Slack Green Team
Oct 6
slack
messages
Working PowerShell for Slack: Invoke-RestMethod to a webhook, chat.postMessage with a bot token, Block Kit, and a file upload. Every script was run in PowerShell 7.6.6 against a real Slack workspace, with its output.
Slack Green Team
Oct 6
slack api
powershell
We renamed a Slack app and its bot user eight times in a test workspace. Which names changed, how fast Slack showed them, the App Home edit that never reached Slack, and the exact validation messages.
Slack Green Team
Oct 6
slack api
slack apps
We called users.setPhoto 18 times on a test Slack workspace: PNG, JPEG and GIF, crop boxes, a 27 MB file and a broken one. What Slack stored, the errors, and how fast the new photo showed up.
Slack Green Team
Oct 6
slack api
profile picture
A tested alertmanager.yml for Slack, the messages Prometheus alerts produced, a custom title and text template, and what send_resolved, group_by and color changed. Plus a typo amtool did not catch.
Slack Green Team
Oct 6
slack api
prometheus
We sent Grafana alerts to Slack through both kinds of contact point, then replaced the default message with a notification template. The messages Slack showed, the delays, the template we used and the errors Grafana logged.
Slack Green Team
Oct 6
slack api
grafana
We ran the Jenkins Slack Notification plugin against a real Slack app: the pipeline that worked, the botUser setting that makes slackSend fail with a 404, threads, Block Kit, and the errors for channels the bot cannot see.
Slack Green Team
Oct 6
slack api
jenkins
We ran 8 Slack node operations in n8n with a bot token, a user token and the OAuth2 credential. What each one can do, the errors you get, and two traps: the OAuth2 callback and the status expiration time zone.
Slack Green Team
Oct 6
slack api
n8n
We ran the n8n Slack Trigger against a real Slack app: which URL passes Slack's challenge, why a test event can arrive a minute late, why a channel the bot is not in stays silent, and how the bot can trigger itself.
Slack Green Team
Oct 6
slack api
n8n
Slack은 2026년 10월 저장한 메시지를 나중에 탭에서 사이드바의 저장됨(영어 화면에서는 Saved)으로, 리마인더를 해야 할 일 탭으로 옮겼습니다. 저장이 누구에게 보이는지, 리마인더가 무엇을 하는지, 저장한 메시지가 삭제되면 어떻게 되는지 시험했습니다.
Slack Green Team
Oct 6
slack tips
productivity
볼 수 없습니다. Slack은 관리자에게 검색어 기록을 주지 않습니다. 무료 워크스페이스의 기본 소유자로 확인해 보니 관리자 분석은 워크스페이스 전체 합계뿐이었고, 접근 로그와 분석 API는 거부됐습니다. Enterprise에서는 하루 검색 횟수가 보입니다. 내 최근 검색이 어디에 남는지와 관리자에게 보이는 다른 것도 정리했습니다.
Slack Green Team
Oct 6
slack admin
privacy
Slack 검색 연산자로 결과를 좁힐 수 있습니다. in:#채널, from:@이름, with:@이름, before:, after:, on:, during:, has::이모지:, is:saved, has:pin, is:thread, "구문", -단어, rep*. 모든 수식어를 예시와 날짜 형식과 함께 정리하고 직접 테스트했습니다.
Slack Green Team
Oct 6
slack tips
slack search
Slack에서 글머리 기호를 만들려면 줄 맨 앞에 * 나 - 와 공백을 입력하거나 Cmd+Shift+8을 누릅니다. 테스트해 보니 Tab으로 5단계까지 중첩되고, 마크업 모드에서는 목록이 꺼지며, API mrkdwn 텍스트에는 목록이 없지만 markdown 블록에는 있었습니다.
Slack Green Team
Oct 6
slack
formatting
데스크톱에서는 환경설정, 알림, Sounds & appearance에서, 휴대폰에서는 알림, 소리에서 Slack 알림음을 바꿉니다. Slack 안의 파일로 13개 소리를 측정하고, 데스크톱 소리가 계정을 따라오는 이유와 소리 파일을 바꾸면 앱이 깨지는 이유도 정리했습니다.
Slack Green Team
Oct 6
slack
notifications
Mac에서는 로그인 항목에서 Slack을 빼고, Windows에서는 작업 관리자에서 사용 안 함으로 바꿉니다. Mac 단계를 macOS 26.5.2에서 직접 해 보고, Slack 4.52.171의 시작 코드를 읽어 Slack이 다시 켜지는 이유를 설명합니다.
Slack Green Team
Oct 6
slack desktop
windows
유료 플랜은 워크스페이스가 있는 동안 메시지를 보관합니다. 무료에서는 메시지가 많은 채널에서 정확히 90일 전까지만 보였고 그보다 오래된 것은 나오지 않았습니다. 실제 설정 화면과 선택지도 실었습니다.
Slack Green Team
Oct 6
slack admin
slack privacy
자주 묻는 질문
Slack은 팔로우하는 스레드의 답글만 알려 줍니다. 스레드 팔로우와 해제, 채널의 Follow every thread를 웹에서 직접 해 보고, 각각의 위치와 동작을 정리했습니다.
Slack Green Team
Oct 6
slack notifications
slack threads
We ran the pablovarela/slack Terraform provider against a real Slack workspace: create, update, drift, import, adopt and destroy a channel, plus the exact errors for bad names and missing scopes.
Slack Green Team
Oct 6
slack api
terraform
Slack publishes no fixed IP range for the requests it sends to your app. We logged 80 real requests from Slack over 73 minutes: 58 different addresses, all in AWS us-east-1. What that means for a firewall allowlist, and what to check instead.
Slack Green Team
Oct 5
slack api
slack security
A complete Slack app on FastAPI with Bolt for Python's adapter: a slash command, a button and an app mention, run behind a tunnel in a real workspace. We timed the acks, pushed one past 3 seconds and broke the signature on purpose.
Slack Green Team
Oct 5
slack api
python
Apple Shortcuts has no Slack status action, but its Get Contents of URL action can call Slack's API. We built a shortcut that sets a 60-minute status, ran it on macOS 26.5.2, and added a second one that posts a message through a webhook.
Slack Green Team
Oct 5
slack status
apple shortcuts