Most campaigns focus on getting people to take the main action. That could be signing the petition, sending the email, signing up to join an event.
But what happens next matters just as much. In a world where most outreach channels are owned by corporations, and focused on paid ads to create visibility and growth, a lot of campaigns neglect the Share step and its potential for free peer-to-peer reach and growth.
Sharability is how campaigns go viral. You can have the strongest message, the best timing, and the perfect targeting, but if your campaign doesn’t spread, it won’t scale beyond your existing supporter base. Social sharing isn’t just helpful, but essential.
Why sharing matters more than you think
When someone shares your campaign, they’re not just amplifying your message. They’re endorsing it with their own name and credibility among their networks – that’s what makes peer-to-peer sharing so powerful.
People trust their friends more than they trust organisations. A campaign shared by someone you know is far more likely to get your attention, and your action, than a paid ad.
That’s why the share step is one of the most effective ways to:
- grow your supporter base organically
- reach new aligned audiences without paying for ads
- deepen engagement and affinity of your existing supporters
Sharing is how your supporters become your best advocates and recruiters. And importantly, the people they bring in are often highly aligned. They’re more likely to care, engage, and stick around to take more actions and support your fundraising.
This isn’t just theory – we’ve got the receipts! Across campaigns, we’ve seen this effect play out at scale, with hundreds of thousands of shares translating directly into tens of thousands of meaningful actions. Every share is a signal, and more often than not, a starting point for someone new entering your movement.
What “good” sharing actually looks like
One of the most useful metrics in campaigning is the share rate. That’s the ratio between people who take the main action (e.g. sign a petition) and those who go on to share it.
Here’s how to read share rates:
- 10–20% → solid baseline (e.g. 100 people signed the petition, 10 of those shared)
- 20–30% → good engagement
- 30–50% → very strong, highly engaged supporters, viral potential
If you’re consistently above 25-30%, you’re doing something very right. Your message resonates, feels timely or important at a personal level, and people want to pass it on.
It’s also a great way to compare campaigns within your organisation, and lets you see how the same audience responds to a different topic or framing. We find that share rates tend to improve over time, as your audience becomes more engaged and familiar with your campaigns.
From sharing to real growth
The real value of sharing isn’t just about who clicks, and how they feel about your organisation or campaign: it’s also about the people who engage with the shared content, and become your new supporters.
In Proca, you can track how many new actions come from shared links. That’s your organic, free, supporter list growth in action.
And the numbers are significant. In recent campaign data, over 240,000 shares generated around 64,000 actions, including petitions signed, emails sent to decision-makers, and other forms of engagement like signups and donations. That’s some great measurable impact, and a very significant saving. Bringing in 64,000 of supporters using Meta or Google ads could cost between 20,000 and 70,000 euro, depending on country, market and topic.
People who take action because they react to something their friends shared are often first-time supporters. They didn’t know your organisation before, or haven’t heard about the topic of your campaign, but discovered you through someone they trust.
If you compare that to paid acquisition, it’s usually far more efficient. No ad spend, no targeting, no sharing your contact lists with Big Tech Corporations – just people inspiring other people. And because they take action through a personal connection, they can be more likely to stay engaged and return for action in the future.
Where sharing actually happens
It’s easy to think of sharing as something that happens mostly on public platforms like Facebook or X. But in reality, a large part of campaign growth comes from less visible channels.
More than half of shares now happen on mobile, often through native share tools. These include messaging apps like WhatsApp, Signal, Messenger, or private group chats. But the real advantage of the native share option is that it can offer many more app and channel options – especially those preferred or most used by the supporter – that we could otherwise support.
Messaging apps and private channels don’t show up in public feeds, and your social media listening software won’t pick them up, so they’re hard to track externally – but they drive a huge amount of engagement.
In fact, our campaign data shows:
- mobile shares consistently represent between around 50% of total sharing,
- messaging platforms like WhatsApp generate a disproportionately high number of resulting actions,
- public platforms like Facebook still play an important role in visibility and awareness, but trending down.
Each channel plays a different role. Public posts can help spread awareness and visibility, but private sharing drives direct action and deeper engagement.
Making sharing easy and effective
Sharing is valuable, and setting up a good share step shouldn’t take more than a few minutes, but it can have a huge impact. Proca’s share step is designed to make it as easy and natural as possible.
Supporters can:
- share on social platforms with pre-filled messages (e.g. WhatsApp, BlueSky, X),
- share via email,
- use native share options on their device.
That last one matters more than it might seem. Our clients report that more than 50% of action takers now engage on mobile, and 50-70% of mobile sharing happens through these native tools.
Proca’s share step also supports multiple message variants (using the same Snowflake Engine approach as Mail-to-Target), so shares don’t all look identical. That helps content feel more authentic, less automated, and more personal.
Measuring what matters
Every share link generated through Proca includes tracking parameters automatically.
This means you can:
- see how many shares there are,
- track how many actions come from shares,
- understand which channels perform best,
- monitor growth over time.
But the most useful question isn’t “how many shares did we get?” It’s: how many new supporters did those shares bring in, and how engaged are they?
Because that’s what sharing really does. It turns your supporters from passive consumers of content, into an active distribution network, and their friends into your future supporter base.
Sharing is part of the supporter journey
The share step is not an optional add-on. It’s a core part of the supporter journey, and one that should be designed intentionally. With Proca, after someone takes action, you can:
- show a dedicated share step,
- customise messaging based on the campaign,
- A/B test different variants to improve performance,
- add a donation ask as a follow-up.
One of our cool features that helps you build a seamless flow on your WordPress landing page is StepContext. It can let you tailor what supporters see after acting, and direct the site to display different messages, different calls to action, and flows.
You can also extend sharing beyond the page itself. For example, including share prompts in your thank-you emails gives supporters another chance to amplify the campaign once they’ve left the site. With Proca, these links (including tracking codes) are created automatically in your post-action emails, pulling share content from the Metadata you added to your campaign landing page.
The takeaway
If you’re not investing in your share step, you’re leaving growth on the table. It’s one of the simplest, most cost-effective ways to:
- reach new audiences
- strengthen engagement
- scale your campaigns organically
And the data is clear: sharing is not just a visibility tool. It’s a conversion engine. It’s how you let your supporters be your recruiters and advocates, and how people build a stronger connection to a campaign or an organisation over time.