Learning Objective
By the end of this tutorial, you’ll know how to add a LinkedIn Voice message step to a lemlist campaign, choose how the audio is created (record or upload), and personalize the voice message per lead in the Launch section.
Why This Matters
Voice messages add tone and personality that text can’t, helping you stand out and build stronger first-touch connections. Used thoughtfully, they can increase engagement by making your outreach feel more human and intentional.
Prerequisites
You have a campaign created.
Your LinkedIn account is connected to lemlist.
Core Lesson: Step-by-Step Workflow
Phase 1: Open your campaign and add the Voice message step
1) Open your campaign
From Campaigns, select the campaign where you want to add the LinkedIn Voice message step.
2) Add a Voice message step to your sequence
In the campaign sequence builder, click Add step, then select Voice message. This creates a LinkedIn Voice message step in your sequence.
Phase 2: Configure the sender and audio
3) Choose the LinkedIn sender for this step
In the Voice message step, select the sender that will send the message. Voice notes must be sent from a specific sender.
4) Record or upload your voice message
Choose how you want to add the audio:
Record manually by clicking Start recording, or
Upload a pre-recorded audio file by choosing a file or dragging and dropping it.
Voice messages can be up to 1 minute.
If you record inside lemlist, make sure the correct audio input is selected in the microphone dropdown before recording.
Rules for uploading an audio file
Max 20MB
Max 1min00s
Supported file type: .wav, .mp3, .m4a, .flac, .ogg, .aac, .wma
5) Add an invite message for leads you’re not connected with
If a lead is not connected with you on LinkedIn, you can add the message that will be sent with the invitation directly in the field under the voice note.
Phase 3: Personalize voice messages per lead in Launch
6) Personalize a voice message for a specific lead
Go to the Launch step of your campaign, select a lead, then click Personalize on the Voice message step.
In the personalization panel, you can review the default audio and replace it with a custom recording or a different audio file for that lead.
After saving, that lead will use the personalized voice message instead of the default campaign-level one.
Practical Application / Real-Life Example
If you’re targeting prospects who get many LinkedIn messages, try using a short voice note as a pattern interrupt:
Day 1: Connect (with a short invite message if needed).
Day 2: Send a Voice message referencing a specific detail (role, recent post, company update).
Day 4: Follow up with a short chat message or email to propose a next step.
Keep voice messages concise (15–30 seconds is often enough) and end with a simple question to make replying easy.
Troubleshooting & Pitfalls
Issue: I don’t see the Voice message step
Root cause: You’re not in the campaign sequence builder or the LinkedIn sending options aren’t available.
Fix: Go back to the campaign Sequence builder and add a new step again. Make sure your LinkedIn account is connected.
Issue: My microphone isn’t recording the right input
Root cause: The wrong audio input is selected, or browser permissions are blocked.
Fix: Select the correct microphone in the audio input dropdown, and confirm your browser has permission to use the microphone.
Issue: My audio file won’t upload
Root cause: File is too large, too long, or in an unsupported format.
Fix: Verify it’s under 20MB, under 1:00, and in one of the supported formats (.wav, .mp3, .m4a, .flac, .ogg, .aac, .wma).