You’re evaluating two potential affiliate partners for your program.
Person A is a well-known name with 500K followers across multiple platforms and 100K monthly website visitors.
Person B is a niche creator with 50K followers and 20K monthly website visitors.
Which one do you choose?
Based on these details alone, neither. Follower count, name recognition and web traffic don’t tell you whether a partner can reach your ideal customers or drive qualified leads. You need more information to make that decision.
Bianca Balazic, Premier Services Lead at PartnerStack, has seen plenty of teams choose B2B affiliate partners based on size and name alone, which can be a mistake. “It’s about finding the right fit,” says Balazic. “Sometimes it might not be the shiny logos.”
She also sees the opposite problem. Because B2B affiliate marketing is still somewhat new compared to B2C, many teams “just kind of let everyone in” and test without a clear method. “That doesn’t really work either,” she says.
For enterprise teams, both approaches can get expensive. Partner managers have limited time to spend on each partner, and with long B2B sales cycles, it can take months to learn that a partner was the wrong fit.
Below, we break down how to approach affiliate partner vetting so you can focus your time on the partners most likely to perform. You’ll see:
- What to look for in an affiliate partner
- How to evaluate potential partners before bringing them into your program
- When to run a test and when to just launch
- How to support partners after activation
What makes an affiliate partner worth pursuing?
Traffic, followers and name recognition still matter in affiliate partner selection, but they shouldn’t be the only deciding factors. Other factors matter just as much, or even more.
Before you spend time and resources onboarding a partner, evaluate these five things:
Audience overlap
Your affiliate recruitment strategy should start with checking for audience fit. Does your potential partner’s audience match your ideal customer profile (ICP)? If not, the partnership is unlikely to produce results regardless of how many followers they have.
Ask for their website, newsletter and social media analytics and look for overlap with your ICP. If your product serves specific industries or regions, check that the partner reaches those segments too.
Also consider who in the audience already knows you. If most of a partner’s audience is already familiar with your brand, the sales they drive might have happened anyway. The most valuable partners often bring incremental customers — buyers you wouldn’t easily reach on your own.
Audience engagement
Having followers and having a community are two different things. You want a partner with an engaged audience: people who take their recommendations seriously and act on them. Engagement is one of the clearest signals of affiliate audience quality.
To check this, start by reviewing the engagement on their recent posts. Check the comments, shares, saves and other relevant interactions to assess the relationship between the partner and their audience. Compare this engagement with audience size. A smaller partner may have a more engaged audience than a bigger one, and might convert better.
See more: How to attract better quality affiliates to your program.
Brand alignment
A partner might reach your ideal customers and have an engaged audience but still be a poor fit if their content, reputation or promotional methods conflict with your brand.
Start by setting clear standards, such as your company values and a partner code of conduct. Then review their existing content and past partnerships to understand how they present products and work with other companies.
Check whether they promote direct competitors or have existing commitments that could conflict with your partnership. Also, make sure their promotional methods comply with your affiliate program’s terms. If they use paid advertising, coupon sites, email campaigns or other channels, confirm that those methods meet your requirements.
Track record
Two of the traits Balazic looks at to predict performance are how long a partner’s website has been around and how they’ve performed in other verticals. Beyond that, ask which companies they’ve worked with and what they promoted.
You can also speak with industry contacts who have worked with the partner and ask about their experience. These conversations may reveal useful information that performance metrics alone won’t show.
Readiness and willingness to collaborate
Finally, assess how willing and ready a partner is to get started. A promising partner might not be ready to launch, have conflicting commitments or lack a clear plan for promoting your product.
Pay particular attention to how they communicate and collaborate:
- Do they answer questions clearly, provide requested information and respond within a reasonable timeframe?
- Are they open to discussing different approaches if their initial plan doesn’t work?
“There are some partners that are so willing to make things work, and I feel like that’s really underrated,” says Balazic. A partner willing to work with you to address problems and improve their strategy is easier to build a productive relationship with than one who refuses to communicate or adapt.
How to vet affiliate partners
Before you bring new partners into your program, you need a consistent approach to affiliate partner qualification. Follow these steps to handle affiliate due diligence, narrow your list and choose the right partners.
1. Define your ideal partner profile
Before reaching out to potential partners, document what you’re looking for. Create an ideal partner profile (IPP) that includes the audience you want to reach, relevant industries, preferred promotional channels, geographic markets and any other requirements a partner must meet.
If you already run an enterprise affiliate program, use your performance data to refine this profile. Identify your high-performing affiliates and look for patterns in their audiences, promotional methods and results. These patterns can help you recruit similar partners who are more likely to succeed in your program.
“It’s about really analyzing the program over a period of time,” says Balazic. Look at your top performers, learn what’s working for them and reapply those lessons when you recruit.
2. Create a shortlist of potential partners
Once you’ve defined your ideal partner profile, use it to narrow your search and create a shortlist.
PartnerStack’s Partner Discovery tool lets you search thousands of PartnerStack Network partners, all reviewed and approved by PartnerStack’s Network team. You can filter by criteria such as partner type, audience size, industry, location, selling method and commission structure to match your IPP.
PartnerStack also offers AI-powered partner recommendations based on factors such as your industry preferences, past interactions, similar programs and partner activity.
Before you reach out, you can also run shortlisted partners through the Partner Fit Scorecard, a community-built skill you can download from PartnerStack’s Partner Skills Marketplace. It scores each partner and recommends whether to invest, test or pass on them.
Related: The AI-native PRM: What it means for your partner program.
3. Verify the partner’s claims
Start by asking for referral data from previous campaigns, including clicks, signups and conversions, to see whether people actually buy through their links. Whether a partner shares these metrics with you or you see them on a platform, check them before you commit. Some partners overstate their reach.
Balazic uses a third-party traffic tool to see how much traffic a partner’s site gets. If a partner’s link sends more traffic than the tool shows for their entire site, she treats it as suspicious. Other warning signs, she says, include “bumps in traffic out of nowhere, clicks aren’t really matching the website, the volume isn’t really matching what they say, things like that.”
The same traffic data can help you estimate results. If you know roughly how many clicks a partner sends from their content, you can apply your own site’s conversion rate to forecast what they might drive. “That’s super predictable,” she says.
She also checks how a partner has performed in other programs on PartnerStack. If a partner describes a lot of promotional activity but hasn’t generated revenue or commission for any other program for a year, that’s a red flag.
Tip: PartnerStack’s partner designations, such as Top Partner, can help you spot partners with a proven track record.
Then ask for examples of previous promotions, such as links to published articles, screenshots of campaigns or anonymized performance reports. If a partner can’t explain how they promote brands or show you examples, Balazic treats that as a red flag, too. These examples are also useful for affiliate fraud prevention, because they let you verify claimed promotional methods and activities.
4. Talk to the partner
Next, talk to each partner directly. A call is the best way to do this. If a partner isn’t willing to hop on a call, Balazic treats that as a red flag.
Use the conversation to learn how they work, how they’d promote your product and how ready they are to start. Ask about their proposed promotional channels, launch timeline, current commitments and the resources they’ll need from your team, and make sure their plans align with yours. If anything they’ve shared is unclear, ask follow-up questions.
Be ready to be flexible on terms, too. According to Balazic, one of the biggest mistakes programs make is not being willing “to meet the partners where they’re at.” That might mean rewarding signups, testing a cost-per-click model or giving top performers a higher revenue share. Too many teams focus only on bottom-of-funnel revenue, she says, but affiliate is “a marketing function.”
Before you move ahead, agree on promotional channels, commission terms, tracking links, attribution, reporting expectations and any limits on how they can promote your brand. Confirm their methods follow your program terms and disclosure requirements.
Keep this process as simple as you can. Balazic finds that complicated insertion orders and legal processes, such as negotiating a custom agreement with every partner, can create challenges — though some industries do need stricter review. “If there’s any sort of roadblock to just getting your link and going live for an affiliate partner, that’s going to slow things down,” she says.
You might also like: How to create a commission structure that partners can’t resist.
5. Run a test if unsure
If you still have doubts about a partner, run a test campaign before committing more time or resources to the partnership. A test campaign is a small, time-limited promotion that helps you assess a partner’s performance in practice.
Testing is common at larger companies, and Balazic doesn’t see it as an issue. “Running a test is okay, just making sure it’s for the right amount of time,” she says. If your product has a two-week free trial, for example, a one-month test leaves you with only about two weeks of conversion data.
Products with longer B2B sales cycles may need even more time. Before the test starts, agree with the partner on what success looks like. At the end, use the results to decide whether to invest more, extend the test or pass.
How to support partners after activation
Your work doesn’t end when you onboard a partner. Even a promising partner may struggle to perform if you leave them to figure things out on their own. “You’d be shocked how many people write a couple intro emails to say welcome and then do nothing else for the program,” says Balazic.
Balazic recommends the following practices to help partners succeed and improve your enterprise affiliate program over time:
- Support them beyond onboarding: Make sure partners have what they need throughout activation, not just at the start, and keep their resources current. She’s seen programs with product pages that haven’t been updated in years.
- Keep affiliates in the loop: Tell them every time you launch a new product, landing page or anything else that affects how they promote you.
- Talk to your partners: Check in with them regularly.
It also helps to keep an eye on performance between check-ins, so you can spot a struggling partner early and work with them on a fix. A partner management platform like PartnerStack can make this easier, with one place to manage partner relationships, monitor performance and track program results.
Above all, Balazic says, remember that affiliates are an external sales and marketing team. “Treat them like they are a part of your company and you will get much better results.”
Know when to stop vetting and launch
Vetting helps you make better decisions, but it can’t guarantee a partner’s performance. As Balazic explains, you can gather as much data as possible about a partner, but you won’t know everything until they start promoting your product. “You’re really just making your best possible guess,” she says.
Unlike many startups, some enterprise teams are “scared to just fail fast and try a partner,” Balazic finds. Yet waiting for certainty can mean missing promising partnership opportunities. Sometimes, you need to launch a partnership to find out whether it will work.
Give the partner enough time to generate meaningful results and evaluate performance against your goals. If the partnership falls short, work with the partner to identify what needs to change. If you can’t resolve the issues, end the partnership and use what you’ve learned to inform future recruitment decisions.
How you end things matters, too. Balazic, for example, has told partners that a partnership wasn’t converting down-funnel after six to eight months. The collaborative ones took it in stride, and she’s gone back to some of them later when circumstances changed. “I’ll actually go back to those partners and be like, ‘Hey, something’s changed. Maybe let’s try again,’” she says.
So, back to Person A and Person B. The right choice depends on fit, not size, and the smaller partner could easily come out ahead. As Balazic puts it, your top partner might be a niche website your audience already visits. “That could be your best partner.”
Want help finding partners worth vetting? PartnerStack’s Partner Discovery tool and AI-powered recommendations help you search thousands of reviewed Network partners and shortlist the right fit for your program. Book a demo to see how it works.
FAQs
How do enterprise teams vet affiliate partners?
They start by defining what a strong partner looks like, often based on their current top performers. Then they build a shortlist, verify each partner’s traffic and past results, and talk to them directly about how they’d promote the product. When they’re still unsure, they run a test campaign before committing.
What should an affiliate partner scorecard include?
An affiliate partner scorecard should assess criteria such as audience overlap, audience engagement, brand alignment, track record and readiness to collaborate. Score each criterion and use the results to decide whether to invest in, test or pass on a partner.
How can a brand verify an affiliate’s audience quality?
Ask for analytics from the partner’s website, newsletter and social channels, and compare their audience with your ICP. Review engagement on their recent posts relative to their audience size. Then check the numbers yourself with a third-party traffic tool.
What is the difference between affiliate reach and incrementality?
Affiliate reach is how many people a partner can put your product in front of. Incrementality is how many of the customers they bring wouldn’t have found you otherwise. A partner with huge reach may add few incremental sales if their audience already knows your brand or would have bought anyway.
When should an affiliate prospect be tested instead of rejected?
Test a prospect when they show strong audience fit and brand alignment but lack enough performance data to justify a larger investment. Reject them when you find clear red flags, like traffic that doesn’t match what they claim or proposed promotional methods that conflict with your brand or program rules. Give any test enough time to cover your trial period and sales cycle.
