Integrations / Automation, spreadsheets and work management

Use AssistCall with Microsoft Power Automate

AssistCall answers your business calls 24/7 and works alongside Microsoft Power Automate: forwarded calls get answered, booked or noted, with a summary of every call by email.

Microsoft Power Automate: Microsoft's automation service for Microsoft 365 users. Its cloud flows connect Outlook, Teams, Excel, SharePoint and hundreds of other services.

Works alongside

Example call

A client calls the accounting firm after hours about a tax notice. The receptionist takes a message, and a Power Automate flow posts it in the firm's 'Client calls' channel in Teams with the caller's name, number and what the notice says. A partner sees it in Teams the next morning.

• Post every completed call to a Microsoft Teams channel with the caller's number, summary and recording link, from a flow that starts with 'When an HTTP request is received'.
• Add each message.taken event as a row in an Excel table on OneDrive or SharePoint, so the office works through callbacks in Excel.
• Use a Condition on the urgency field to send the on-call manager an Outlook email whenever a message is marked urgent.

How it connects

• Webhook: Signed JSON for every call, message and booking, sent to any HTTPS URL you choose.
• Call forwarding: Forward your business line to AssistCall when busy, after hours or always. Works with any carrier.

About Microsoft Power Automate's API

• Self-serve API: you can create a key in your account
• Style: Inbound HTTP endpoint (the 'When an HTTP request is received' trigger), with an optional Response action
• Authentication: Set 'Who can trigger the flow' to Anyone. The URL then carries a SAS signature (sig) that acts as the secret. The default tenant-only modes need Microsoft Entra ID tokens, which AssistCall doesn't send.
• On Zapier: no. On Make: yes.

The trigger that receives AssistCall events is 'When an HTTP request is received', and it is a premium connector. Microsoft's licensing FAQ says users on the free plan or a Microsoft 365 license can only use standard connectors. The flow owner therefore needs Power Automate Premium ($15 per user a month, billed yearly), or the flow needs a Process license ($150 a month, billed yearly). New flows default to 'Any user in my tenant'. Switch to 'Anyone' so AssistCall can post to the flow, and treat the URL like a password (the key can be regenerated). Paste a sample AssistCall event into 'Use sample payload to generate schema' so its fields can be mapped. Without a Response action, the trigger answers 202 straight away, which AssistCall counts as delivered. After that, standard actions such as posting in Teams, adding a row to an Excel table or sending an Outlook email work as normal.

Not included: no one-click Microsoft Power Automate app, no listing in Microsoft Power Automate's marketplace, no two-way sync, and no partnership with Microsoft Corporation.

Researched by the AssistCall team and checked against Microsoft Corporation's public pages on October 24, 2026. Microsoft Power Automate is a trademark of Microsoft Corporation. AssistCall is an independent product of Starling Global LLC and is not affiliated with, endorsed by, sponsored by or approved by Microsoft Corporation.

More Automation, spreadsheets and work management integrations

• Google Sheets: Google's online spreadsheet, free with any Google account and part of Google Workspace, which small businesses use for lead lists, call logs, job trackers and simple reports.
• Microsoft Excel: Microsoft's spreadsheet, included in most Microsoft 365 business plans, which small businesses use for call logs, job lists, quotes and bookkeeping. The online version keeps workbooks in OneDrive or SharePoint.
• monday.com: A work management platform where teams track projects, leads, jobs and requests on boards they set up themselves. CRM and service products run on the same platform.
• Notion: A workspace for notes, docs, wikis and simple databases that small teams also use as a lightweight CRM, task list or client tracker.
• Trello: A board app from Atlassian where small teams track jobs, leads and tasks as cards that move across lists.
• Zapier: A no-code automation service that connects more than 9,000 apps, so a small business can pass data from one app to another without writing code.

All product and company names in this directory are trademarks or registered trademarks of their respective owners, used only to identify systems AssistCall can send call information to or receive information from. Their use does not imply any affiliation with or endorsement by their owners. AssistCall connects using signed webhooks, the business's own API keys, automation platforms (Zapier, Make, n8n) the business sets up in its own account, and call forwarding. AssistCall does not provide one-click connectors, marketplace apps, certifications or two-way record or calendar sync, and does not sign HIPAA business associate agreements. Vendor features, plans and API access can change; information last checked October 24, 2026.