How Online Aannemer Prevented a Costly Mistake with Octanist

At Online Aannemer, we specialize in lead generation campaigns for our clients. For one fast-growing company looking to attract new job applicants, we launched both Google Ads and Meta (Facebook) campaigns, with the goal of boosting recruitment.

At Online Aannemer, we specialize in lead generation campaigns for our clients. For one fast-growing company looking to attract new job applicants, we launched both Google Ads and Meta (Facebook) campaigns, with the goal of boosting recruitment.

Initially, we assumed Google Ads would be the top performer and allocated five times more budget to it. As the campaign progressed, however, we noticed an unexpected trend: Facebook campaigns were generating far more leads — and at less than half the cost per lead (CPL). We adjusted the budget accordingly, bringing it to parity with Google Ads. The leads kept coming in, and things looked promising.

But then came the concerns from the HR department. They were swamped, the recruiter team was maxed out, and there was no clear view on lead quality. Despite the high lead volume from Facebook, the team couldn't tell which leads actually turned into hires.

At this critical point, we discovered Octanist.

With Octanist’s easy-to-implement offline conversion tracking, we connected the platform to our HR software and fully automated the tracking of which applicants were actually hired. No more manual updates — just real-time insights into what really mattered.

And the results? Eye-opening.

While Facebook brought in a higher number of leads, Google Ads delivered 12x more actual conversions — real hires. Without Octanist’s offline conversion tracking, we would have unknowingly shifted our budget away from the most effective channel and based our decisions purely on misleading CPL metrics.

Octanist made complex offline conversion tracking accessible, fast, and incredibly useful. It gave us the data we needed to make smarter decisions and focus on what really drives business growth: quality, not just quantity.

We can confidently say: Octanist saved this campaign.