Post a message in Slack when a row is added in Google Sheets

What each client fills in

Slack: Channel

For example #leads or C0123456789

Google Sheets: Spreadsheet ID

For example from the URL: docs.google.com/spreadsheets/d/<this>/edit

Google Sheets: Sheet (tab)

For example Sheet1

The accounts it needs

Each is the client’s own, stored encrypted and never copied between clients. Until one is added the client’s checklist shows it, and nothing runs.

• Google Sheets

  In your own Google Cloud project: enable the Google Sheets API, then IAM & Admin → Service accounts → Create → Keys → Add key → JSON, and paste the file here. Then share each client sheet with the service account’s email (…@….iam.gserviceaccount.com) as an Editor. The account is yours; no Google review is needed.

• 

  In the client’s Slack: api.slack.com/apps → Create New App → OAuth & Permissions → add the chat:write scope (and channels:history, plus groups:history for a private channel, for the message trigger) → Install to Workspace → copy the Bot User OAuth Token. Invite the app to the channel.

After you install it

It lands switched off. The client’s checklist holds exactly this:

1. Connect the client’s Google Sheets, for “A row is added”
2. Connect the client’s Slack, for “Post a message”
3. Fill in Google Sheets: Spreadsheet ID (For example from the URL: docs.google.com/spreadsheets/d/<this>/edit)
4. Fill in Google Sheets: Sheet (tab) (For example Sheet1)
5. Fill in Slack: Channel (For example #leads or C0123456789)