Upcall Poplar

Upcall + Poplar Integrations

Put Upcall + Poplar to work with AI and enterprise-grade automation

Try:

Learn more about Upcall integrations or talk to a human

Trusted by teams already building on Knit·4.9 out of 5 stars4.9/5 on G2·GoogleGoogle for Startups Accelerator
prismforceHackerearthIsotopes AIInfojobsPayoneerOutsolveSkuadPayworksItiliteOnsurityRazorpayXMultiplierPeoplestrongScrutCeipal

See the kind of workflows teams build with Upcall and Poplar below — describe the exact one you want above and the Agent builds it on demand.

Upcall + Poplar When mailings are triggered in Poplar, create follow-up call tasks in Upcall.
Send instant welcome SMS messages to new leads When a contact subscribes to a list in Poplar, dispatch an SMS message through Upcall to give them instant access to introductory offers. See details
Turn missed calls into email subscribers When a call is missed in Upcall, automatically add the caller's contact information as a subscriber in Poplar for automated nurture campaigns. See details
Segment contacts based on inbound text messages When an inbound SMS is received in Upcall, update the sender's subscriber record in Poplar by assigning them to a targeted audience segment. See details

Browse the full workflow library →

Looking to achieve something else with Upcall and Poplar?

Just describe what you need — the Agent researches both APIs and builds the real automation on demand.

Try Knit Free

Triggers & actions for Upcall and Poplar

Everything Upcall and Poplar can do inside a workflow — the triggers that start one and the actions that run when it fires.

Upcall Explore Upcall →

Upcall is an outbound calling and SMS platform that connects businesses with professional callers to execute outreach campaigns.

Knit's Integrations Agent builds Upcall's triggers and actions on demand — describe the automation in plain English and it writes and runs real code against Upcall's API.

Poplar Explore Poplar →

Poplar is a marketing automation platform designed to create and trigger programmatic direct mail letters and postcards.

Actions
Add Audience Member

Adds a user to an Audience

Create Mailing (With Postal Address)

Creates a mailing from a physical address and falls back to email if email append is enabled.

Create Mailing (Email Append)

Creates a Mailing

Add Email to Do Not Mail List

Adds an Email Address to your Do Not Mail suppression list.

Add Address to Do Not Mail List

Adds a postal address to your Do Not Mail suppression list.

Add User ID to Do Not Mail List

Adds a User ID to your Do Not Mail suppression list.

Enterprise-grade security

SOC 2 certified GDPR compliant ISO 27001 certified
Visit our Security Center Review the DPA

Customer Stories

See how leading technology firms are scaling their operations

Amazing Product With Exceptional Support from the team. By using Knit we managed to speed up our development by orders of magnitude.
H
Huynh H
Developer, Multiplier
A brilliant tool to let you seamlessly integrate with many different systems. It is very easy to integrate with and customer support is next level.
J
Jayesh
Co-Founder, Scrut
Seamless integration experience. Well-documented, self-explanatory APIs, and excellent service and support.
P
Poorvi
Product Manager, Onsurity
Easy to integrate. Knit's dashboard is intuitive for setting up and testing integrations, and the sandbox is extremely useful during development.
A
Aditya
Product Lead, RazorpayXPayroll
Knit shipped a brand-new Timesheet API in a week and handed us a ready-to-use NetSuite sandbox. That velocity is priceless when you're running payroll in 40+ countries.
R
Rohit Singh
GM, Payoneer Workforce Management

#1 in Ease of Integrations

4.9 out of 5 stars

4.9 out of 5 stars on G2

G2 Leader, Spring 2026G2 Fastest Implementation, Spring 2026G2 High Performer, Spring 2026G2 Best Est. ROI, Spring 2026
FAQ

Common questions about Upcall + Poplar

Is there a pre-built Upcall + Poplar automation?

Not yet, but Knit's Integrations Agent can build one — describe what you want and it researches Upcall and Poplar's public API docs (or your own uploaded docs) and builds a working automation.

Does this require a pre-built Upcall or Poplar connector?

No. The Agent works whether or not Upcall or Poplar already has a pre-built connector in Knit's catalog — it researches the real API surface either way.

How long does it take to build?

Minutes to build a first working version, not weeks — you test it against real data before it goes anywhere near production.

Can I send automated text messages when someone joins a marketing list?

Yes, as soon as a subscriber signs up in Poplar, you can send a targeted SMS or voice message through Upcall to increase engagement.

How can missed phone calls feed into email marketing flows?

When a prospect calls and leaves a missed call in Upcall, their contact details are added as a subscriber in Poplar to receive follow-up emails.

Put Integrations on Autopilot. Talk to Experts.

Knit is loved by customers across the globe due to our seamless product and white glove support. You'll love us too!

Talk to a Human