Source
A finished Substack issue
Substack workflow
Turn a Substack newsletter into social posts
Turn a finished Substack issue into LinkedIn and X posts without rebuilding the idea from scratch. Letterflow helps Substack writers repurpose each send into a week of promotion that still sounds like the original newsletter.
Output
LinkedIn and X drafts from one send
Best fit
Writers who want each issue to keep working after publish day
letterflow.so/history/issue-104
✓
The Monday Memo
Generated Mar 24 · 23 pieces
5 LI10 X3 EM5 QT
LinkedIn #1
Most founders think fundraising is about the pitch deck. It's not. It's about the 47 conversations...
Twitter #1
Hot take: Your pitch deck doesn't matter nearly as much as you think. What matters? The 47 conversations...
This week
23
posts generated
Voice match
98%
accuracy
A better Substack-to-social workflow
Start with the finished issue, keep the original point of view, and spread the strongest drafts across the week.
Step 01
Start with the sent Substack issue
Use the actual issue that went out so the tone, structure, and strongest arguments are still present when you repurpose it.
Step 02
Generate platform-ready follow-ups
Turn the issue into LinkedIn and X drafts that highlight different angles instead of repeating the exact same summary everywhere.
Step 03
Keep the issue alive after publish day
Schedule the best follow-ups across the week so the Substack post keeps driving discovery instead of disappearing after one announcement.
Use the sent issue as the source asset
A Substack issue already contains the point of view, examples, and pacing that made it worth sending. The best repurposing workflows keep that substance intact rather than trying to invent a fresh angle from nothing.
- Copy in the real issue, not just the headline.
- Keep the examples and tension that make the newsletter work.
- Treat the issue as the source for the week's promotion.
Stretch distribution beyond publish day
Many Substack writers publish the issue, share it once, and move on. Repurposing works better when the issue keeps generating promotion for the next few days, not just the first few minutes after it goes live.
- Publish the clearest draft first, then queue the follow-ups.
- Use the later posts to surface different ideas from the same issue.
- Keep the voice aligned to the newsletter so the handoff feels natural.
Compare the product before you choose the workflow
Review the main Letterflow landing page, pricing, and practical guides before you decide how to repurpose your next issue.
Frequently asked questions
Common questions
Do I need a direct Substack integration to use this workflow?
No. The practical workflow is simply to bring in the finished Substack issue so the repurposing starts from the real source material.
What kinds of social posts should come out of one Substack issue?
Usually a mix: a stronger LinkedIn insight post, a shorter X teaser or opinion, and a few follow-up drafts that surface other useful angles from the same issue.
Useful next reads
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Turn a newsletter into LinkedIn posts
Turn one newsletter into several LinkedIn-ready posts without flattening the original point of view. Letterflow helps newsletter creators generate multiple angles, edit the strongest drafts, and schedule them across the week.
Turn a newsletter into X posts
Turn one newsletter into X-ready hooks, teasers, and short-form variations without starting from zero. Letterflow helps newsletter creators pull out sharper fragments, generate multiple options, and schedule a week of promotion from one issue.
Turn a Substack newsletter into LinkedIn posts
Turn a finished Substack newsletter into LinkedIn posts that promote the idea inside the issue, not just the fact that a new post is live.
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