Low Inventory Alerts
When inventory hits 20 units (or your threshold), you get an instant WhatsApp alert so you can reorder before you run out.
Trigger
Aggregate Metric Changed
Triggers when an aggregate metric (SUM/COUNT/AVG/MIN/MAX) changes in a Google Sheets spreadsheet. This trigger monitors an aggregate calculation on a target column (optionally filtered by a search column/value) and fires when the calculated result changes.
Action
Send message
Send a text message to a whatsapp number. note: the message will reflect on the recipient's phone number only if they have texted first.
Why this helps
You discover stock is low only when a customer asks for an out-of-stock item, leading to lost sales and embarrassment.
- Reorder before you run out, never lose a sale to stockouts
- Avoid the panic of discovering you're out of a key item
- Keep operations smooth and customers happy
Setup
Build it in a few focused steps.
- 1Connect Google Sheets and WhatsApp.
- 2Create an automation: 'When the total quantity of any product in my inventory sheet falls below 20 units, send me a WhatsApp alert with the product name and current stock level.'
- 3Select 'Aggregate Metric Changed' and monitor your inventory total (SUM) and low-stock threshold.
- 4Set WhatsApp as your alert channel.
- 5Test by reducing inventory counts in your sheet.
Questions about this workflow
Can I set different thresholds for different products?
Yes. Create separate automations for each product category with its own threshold.
Should I include reorder information in the alert?
Yes. Tell Notis to include supplier contact or reorder link in the alert so you can act immediately.
Can this trigger a purchase order automatically?
Not directly, but Notis can alert you to reorder. For fully automated POs, connect a purchasing system like Shopify or a custom tool.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Sheets to Whatsapp. A trigger fires from one place; an action lands in another.
Google Sheets triggers
Whatsapp actions
Aggregate Metric Changed
Triggers when an aggregate metric (SUM/COUNT/AVG/MIN/MAX) changes in a Google Sheets spreadsheet. This trigger monitors an aggregate calculation on a target column (optionally filtered by a search column/value) and fires when the calculated result changes.
Create message template
Create a new message template for the whatsapp business account. templates must be approved by whatsapp before they can be used. templates are required for marketing messages and messages sent outside the 24-hour window.
Cell Range Values Changed
Triggers when values in a specified A1 range change in Google Sheets. This trigger monitors a specific cell or range of cells and fires when any values change.
Delete message template
Delete a message template from the whatsapp business account. this permanently removes the template and it cannot be recovered. only delete templates that are no longer needed.
Conditional Format Rule Changed
Triggers when conditional formatting rules change in a Google Spreadsheet. Detects when rules are added, updated, or removed. Uses snapshot-based diffing to detect changes between polls.
Get business profile
Get the business profile information for a whatsapp business phone number. this includes business details like description, address, website, and contact info.
Data Validation Rule Changed
Triggers when data validation rules change (added/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.
Get media
Get information about uploaded media including a temporary download url. the download url is valid for 5 minutes and can be used to retrieve the actual media file. this is useful for downloading media that was sent to your whatsapp number.
Developer Metadata Changed
Triggers when developer metadata entries change (new/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.
Get media info
Get metadata about uploaded media without generating a download url. this is useful for checking file size, type, and hash without downloading the file. use get media if you need the actual download url.
Filtered Range Values Changed
Polling trigger that monitors Google Sheets filtered ranges for value changes. Uses snapshot-based diffing to detect when values matching a data filter change. Emits the matched values when changes are detected.
Get message templates
Get all message templates for the whatsapp business account. templates are required for sending messages outside the 24-hour window and for marketing/utility messages.
New Rows in Google Sheet
Simple polling trigger that monitors Google Sheets for new rows. Detects when new rows are added and returns the complete row data. Perfect for triggering any workflow based on new sheet entries.
Get phone number
Get details of a specific phone number associated with a whatsapp business account.
New Sheet Added in Google Spreadsheet
Polling trigger that detects when a new sheet is added to a Google Spreadsheet.
Get phone numbers
Get all phone numbers associated with a whatsapp business account (waba).
Connect any two apps with Notis in the middle.
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When this happens · Trigger
Do this · Action
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