Paying for sales still leaves your ad budget at risk

Paying affiliates only for paid orders makes sense. Clicks and sign-ups that produce no sales no longer earn them money. The store receives revenue before paying a commission, which does reduce some of the risks to its advertising budget.

Payment, however, only confirms that the customer bought something. An affiliate's entitlement to a commission needs a separate check: which advertising interaction earned them credit for the sale, and did that interaction meet the program's rules? The advertiser uses the same data to assess where customers come from and allocate future budgets. An error here affects both current payments and future advertising performance.

How an affiliate gets paid for someone else's customer

When someone follows an affiliate link, the system records the referral source. If they later make a purchase, it links the order to that source and awards a commission. This assignment of credit for a sale to a participant in the advertising chain is called attribution.

A person may have several advertising interactions while choosing a product. One common model credits the affiliate responsible for the last qualifying referral before the purchase. Applying that rule requires confirmation that the referral actually happened and met the program's terms.

A buyer reads a useful review by a legitimate affiliate, follows its link to the store and takes an interest in a product. They do not place an order straight away: they save a link to the site and leave to think it over or discuss the purchase.

While the buyer is still deciding, a dishonest participant forces the buyer's browser to open the store or contact its tracking system, attaching their own affiliate tag. The buyer has not clicked on that participant's advertising.

When the buyer later returns and pays for an order, the system treats the event carrying the substituted tag as the last referral and awards the commission to that participant. The legitimate affiliate loses the commission they earned. For the store, this misattribution is a serious problem: it pays someone who did not bring in the buyer.

Inserting an affiliate tag in breach of the rules, without a qualifying advertising interaction, is known as cookie stuffing. The customer's history now contains an advertising interaction that never actually happened. Checking that the order was paid will not reveal the substitution. Allowing time to see whether the purchase is returned will not help either: the buyer is real, the order is paid, and there is nothing wrong with the purchase itself.

The financial losses from these payments are substantial: advertisers lose millions of dollars each year on commissions for sales the recipients did not generate. Legitimate advertising agencies and affiliates who actually brought in the buyers miss out on that same money, even though they earned those commissions.

How incorrect attribution affects budgets and sales

Referral and order records feed into affiliate reports. The advertiser sees how many sales were attributed to each source and how much commission was paid for them. A participant who has claimed other affiliates' orders looks more effective than they really are. The source that brought those buyers in looks weaker.

The business uses that report to decide which affiliates to keep working with, who should receive a higher commission rate and who should get more advertising placements. It can end up cutting back on the very source that generated sales while offering better terms to the participant who was taking someone else's commission. That participant's figures can remain attractive as long as there is a flow of buyers they can falsely claim as their own.

A legitimate affiliate, meanwhile, has costs of their own. They pay for placements, create content, find an audience and expect commissions to cover those costs. When someone else receives part of their earnings, attracting buyers for this advertiser becomes less profitable. The affiliate cuts back on buying traffic or switches to another affiliate program.

As affiliates who brought in buyers leave, the return on the marketing budget falls. Commissions on misattributed orders continue to consume the store's money without creating a new flow of customers. Advertising may become unprofitable, prompting the advertiser to reduce or stop buying traffic altogether, even though the underlying problem is the distorted commission system. The advertiser needs fair attribution so that legitimate agencies and affiliates can continue to attract buyers profitably.

What you need to see beyond the totals

A report may show a paid order and the tag of the affiliate awarded the commission. Those details are not enough to establish why that affiliate was entitled to the payment. A click identifier, click_id, helps link a referral to an order, but does not by itself prove that the affiliate brought in the customer.

To investigate, you need to examine how the referral happened, what the visitor did afterwards and the paid orders. Cross-checking these records helps establish whether there is a basis for the commission and where the source may have been misattributed. This requires a history that can be compared with the store's and the affiliate's records. A sales summary alone is not enough.

I also care about what a legitimate affiliate can see in that data. They may have access to aggregate figures for referrals, sign-ups, purchases and revenue, without any connection to specific placements or ways of attracting buyers. Such a report does not give them enough information to manage traffic buying properly: they cannot tell which sources to expand, which to change or where to look for new ways to attract customers.

Money for future placements is then allocated without a clear picture of what generated purchases. The advertiser misses opportunities to develop successful sources, while the agency has less insight into where it can profitably invest its own budget. Verified purchase data can be sent to the affiliate through server-to-server postbacks, so they can see which placements produced orders.

Using analytics to make budget decisions

Even when a commission is justified, the partnership may not be profitable. A business needs to assess how many additional purchases the affiliate generates and whether the revenue from those purchases covers the cost of goods sold, all commissions paid to that affiliate and the other expenses. If the rules have been followed but the additional sales do not cover the costs, the terms of the relationship can be reconsidered without accusing anyone of fraud.

If your reports do not answer these questions, tell me how referrals, orders and affiliate payments are connected in your systems. I can investigate where referral data and actual sales diverge, and check the basis for commissions. By connecting analytics across your store, CRM and affiliates, I can help establish the feedback needed to manage traffic buying. You will have the data to decide who is entitled to payment and which sources are worth developing.