Weekly Slack reminders for inactive WhatsApp customers
Notis scans your WhatsApp conversations each week and reminds your team to follow up with customers you haven't heard from.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
Create a reminder
Creates a slack reminder with specified text and time; time accepts unix timestamps, seconds from now, or natural language (e.g., 'in 15 minutes', 'every thursday at 2pm').
Why this helps
Leads go quiet and get forgotten. Without a system, neurodivergent founders lose track of who to re-engage, and pipeline shrinks due to lost follow-ups.
- Proactively re-engage inactive customers before they're truly lost
- Reduce relationship decay and improve customer lifetime value
- Maintain consistent outreach cadence without manual tracking
Setup
Build it in a few focused steps.
- 1Connect WhatsApp and Slack to Notis.
- 2Create a cron automation: 'Every Friday at 3pm, fetch WhatsApp customers I haven't spoken to in 7+ days and create Slack reminders for follow-up'.
- 3Specify any exclusions (e.g., 'skip customers marked as 'do not contact'' or 'skip open support tickets').
- 4Set the reminder text: 'Follow up with [customer name] – last message was [date]'.
- 5On your first Friday, check your Slack reminders; you should see a list of customers to re-engage.
Questions about this workflow
Can I customize the inactivity threshold?
Yes. Tell Notis: 'Remind me about customers inactive for 3+ days' or '14+ days', depending on your sales cycle.
What if a customer is inactive because they're already closed or churned?
Tag them in WhatsApp or your CRM as 'inactive by choice' or add a note, and tell Notis to exclude them from follow-up reminders.
Can reminders be sent to specific team members?
Yes. You can assign reminders by region, account segment, or salesperson—e.g., 'Send Jane reminders for her accounts only'.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Whatsapp to Slack. A trigger fires from one place; an action lands in another.
Whatsapp triggers
Slack actions
Message Status Updated
Triggers when a WhatsApp message status changes. IMPORTANT LIMITATION: WhatsApp Cloud API does not provide a native polling endpoint for message status. Status updates are ONLY delivered via webhooks in real-time. This trigger cannot directly poll the WhatsApp API for status updates. This trigger will return empty results as WhatsApp does not support this operation. To track message status updates, you must: 1. Set up a webhook endpoint to receive status notifications from WhatsApp 2. Store the webhook data in your own database 3. Use a different mechanism to query your stored webhook data For more information, see: - https://developers.facebook.com/docs/whatsapp/cloud-api/webhooks
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
New Message Received
Triggered in real time when your WhatsApp Business number receives an inbound message from a customer (text, media, location, or contact). Delivered via the Cloud API webhook.
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
Interactive Reply Received
Triggered when a customer taps a quick-reply button or selects an option from an interactive list message you sent.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Message Template Status Update
Triggered when the review status of a WhatsApp message template changes — for example approved, rejected, or flagged — on your WhatsApp Business Account.
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Not just Whatsapp and Slack. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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