Start a workflow in your other tools whenever something new happens in Lettr Labs.
Update records in Lettr Labs automatically when data changes in the apps your team already uses.
Log Lettr Labs activity into a spreadsheet or database so reporting stays current without manual entry.
Ready-made flows built with Lettr Labs — preview one, then make it yours.
If you can’t wait, we can add the beta version to your viaSocket workspace within 24 hours.
See how Lettr Labs integrates with popular apps to automate tasks and streamline your workflow.
Send handwritten welcome letters from Lettr Labs when a HubSpot lead becomes sales qualified.
Launch handwritten renewal mailers in Salesforce when an opportunity closes lost.
Create direct mail follow-ups from Google Sheets when new prospect rows appear.
Trigger handwritten thank-you notes from Shopify after high-value orders ship.
Send handwritten outreach from your CRM when a deal stalls in negotiation.
Queue handwritten postcards from your spreadsheet after webinar leads are added.




Automate when something happens in Lettr Labs
Login -> Create new flow -> Select trigger -> Search Lettr Labs -> Choose the trigger from the list
Take action in Lettr Labs when something happens in an app or you want to add step in flow
Login -> Create new flow -> Select action -> Search Lettr Labs -> Choose the action from the list
Trigger
Action
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viaSocket connects LettrLabs to your other business apps so handwritten, personalized direct mail is automatically triggered by real customer events—such as a new order, an abandoned cart, or a lapsed customer status.
You can connect common CRMs, ecommerce platforms, form tools, and data sources to LettrLabs through viaSocket. This lets you send handwritten mail based on activity in the tools you already use to manage leads and customers.
viaSocket can use AI to draft unique, human-sounding note copy using each customer’s history, segment, or activity. That AI-generated text is then passed to LettrLabs, which turns it into real handwritten mail at scale.
No. viaSocket is built for non-technical teams. You define simple rules like “when this happens in my CRM, send data to LettrLabs,” and the workflow runs in the background without custom code.
Automating LettrLabs through viaSocket helps you recover more abandoned carts, improve winback and retention campaigns, and strengthen relationships with high-value customers—while saving time compared to running manual direct mail lists.
LettrLabs enables you to create handwritten, personalized direct mail to unleash your marketing ROI.
Learn MoreviaSocket is an AI-powered, workflow automation platform that helps people and businesses connect apps and automate repetitive tasks. With thousands of integrations, anyone can build workflows to move data, cut manual work, and save time. Whether for simple tasks or large-scale processes, viaSocket makes automation easy and helps teams focus on what matters most.
Learn More