Building Customer Loyalty for CPG Brands

A CPG loyalty program is a program a consumer packaged goods brand runs to identify the people who buy its products, give them reasons to keep buying and build a direct relationship with them, usually through receipt validation, promotions and rewards. For most CPG brands it has a job that loyalty programs in other categories do not: it has to create the customer relationship before it can strengthen it.

The reason is the route to market. A shopper who buys a brand's cereal, pet food or bottled water at a grocery store or on a marketplace is the retailer's customer at checkout. The retailer sees the basket, the loyalty card and the email address; the brand sees a sales report. A CPG program closes that gap by asking shoppers to prove a purchase, enter a promotion or join a program, and capturing who they are when they do.

The research on loyalty and personalization in general explains why that relationship is worth building and why it has to be maintained once built:

None of these figures is specific to CPG, and the McKinsey finding shows an association, not proof that personalization caused the growth. Two caveats apply before any of it. Not every CPG brand is fully indirect: some run direct-to-consumer stores or subscriptions that already give them a relationship. And loyalty is not right for every product: a low-frequency, low-margin impulse purchase may not support a program at all. Where the fit is there, this guide follows the path a shopper takes from anonymous buyer to repeat customer and the decision a brand faces at each step.

In account-based businesses, a loyalty program starts from a relationship the business already has: the bank knows its account holders and the airline knows its flyers. In CPG, the program often has to build that relationship first. That changes the program's priorities:

• Identity comes first. The first job is turning anonymous purchasers into known, reachable members.
• Promotions carry more weight. A sweepstakes or instant win is often the easiest way to get a shopper to raise a hand for the first time.
• Data is a purpose, not a byproduct. Personalization, retention, cross-selling and product decisions all depend on knowing who the buyers are.
• The retailer stays in the picture. Most purchases still happen in someone else's store, so the program has to work alongside retail rather than around it, for example by rewarding a qualifying purchase at any retailer rather than steering shoppers away from the shelf.

A CPG program moves shoppers through four steps, and each step has its own goal and its own measure:

The steps also set a sensible order for brands with smaller budgets. A brand without a program can start with one receipt-validated promotion that captures registrations and opt-ins, then judge from entrant behavior whether a standing program is worth funding. A larger brand with several product lines can run the same path across brands, but has to decide early whether shoppers join one program or one per brand.

The rest of this guide takes those steps in order. The post on CPG loyalty programs and first-party data covers how the data a program captures builds into an asset over time.

The foundation of a CPG program is proof of purchase: a way for shoppers to show they bought the product, wherever they bought it, and to become known in the process. The most common route is receipt validation. A shopper photographs or forwards a receipt from any retailer, the system reads it and confirms the qualifying product, and the shopper earns points, a rebate or an entry.

ValidSpend™, Brandmovers' receipt scanning and validation module, accepts receipts by SMS, email, app or web form, reads them with image recognition and OCR, and applies rules on purchase location, product mix, quantity and date range before crediting the reward. Receipt validation is offered by other providers too. What matters is how it is used: an upload that takes seconds, a reward that is clearly worth the effort, and line-item data the brand actually puts to work.

A receipt shows the retailer, the date, the products and the price paid, which tells a brand where its buyers shop and what they buy alongside its products. That is what lets a brand send a pet-food buyer an offer on a second product line, or time a reminder to the gap between a shopper's purchases. It does not show the purchases a shopper never uploads, and that gap has two consequences:

• The data is a sample, not the whole base. Shoppers who choose to upload receipts can skew toward heavier or more deal-minded buyers, so treat their behavior as a signal about engaged buyers, not about every buyer.
• Friction decides participation. Every extra step, from a login to a slow confirmation, can cost uploads. Keep the qualifying rules clear on the upload screen, and confirm or reject quickly with a reason.

Rewards attract fraud: duplicate uploads, edited receipts, receipts bought from other shoppers and receipts created with image-generation tools. ValidSpend's fraud tools include CAPTCHA, IP rate limiting, whitelist and blacklist filters, domain checks and manual moderation. Match the controls to the threat: rate limits, filters and domain checks slow bulk and duplicate submissions, while altered or generated images call for review of flagged receipts, which is where manual moderation comes in. The technical guide to receipt validation covers each stage of the process and each type of fraud in more depth.

Receipts are not the only route. A brand's own online store or subscription gives direct purchase data for the shoppers who use it, and retailer-specific rebates or retailer partnerships can add purchase data on the retailer's terms. Treat these as complements to receipts, not replacements: each covers a different slice of buyers.

The routes only add up if they feed one record. Promotion entries, receipt uploads, online orders and program accounts often arrive in different systems, so decide before launch how a shopper who enters a sweepstakes, uploads a receipt and later joins the program is matched to a single profile (usually by email address or phone number), how duplicates are merged and how each person's contact permissions travel with the record into the CRM. Without that, a brand can count the same buyer three times and contact someone who never opted in.

Promotions give a shopper a reason to engage for the first time, and the moment they register is the moment an anonymous buyer becomes a known one. The prize draws them in; the registration, the permission to stay in touch and the purchase data are what the brand keeps.

Design each promotion so it feeds the program rather than standing apart from it:

• Ask for the account at entry. Make registration part of entering, and ask for permission to stay in touch with a clear explanation of what members will receive.
• Keep the form short. Collect what the program will use; every extra field can cost entries.
• Plan the next step before launch. Decide what an entrant sees the day after entering, and what earns them a second action.
• Expect prize seekers. Some entrants want the prize and nothing else. Count them, but judge the promotion by how many entrants take a second action.

Gerber's Feeling Gerber Good promotion shows how a promotion can drive registration. Brandmovers built an edutainment promotion that delivered educational content to moms, with a chance to win weekly prizes, and entrants signed in to MyGerber to enter. During the promotion, more than 15,000 entrants submitted 62,000+ entries, one-third of entrants created new MyGerber accounts, and more than 70% opted in to future communications from Gerber (disclosed by Brandmovers). The case reports registrations and opt-ins, not later purchases, which is why the next two steps matter.

A purchase-linked sweepstakes needs a free way to enter. The rules section below explains why.

A registration is a beginning, not a result. An entrant who never takes a second action adds a name, not a customer, so the program's job is to earn a second action and then a habit. For a CPG brand, the levers are specific:

• A first reward that arrives quickly. A welcome bonus or an easy first earn shows the program works before the shopper forgets they joined.
• Earning beyond the purchase. Points for missions, content, reviews, referrals or profile questions keep members active between purchases, which matters most for products bought every few weeks or months.
• Rewards across the range. Bonuses for trying a second product or buying across categories encourage trade-up and trial without discounting the core product.
• Regular contact. The Forrester finding in the introduction, from 2021 data, is the warning: members who hear nothing forget the program. A steady rhythm of offers, missions and progress updates keeps it in view.
• Reward economics that fit the category. CPG margins are thin, so reward value has to be set against what each behavior is worth to the brand. Points that members have earned but not redeemed are a cost the brand has committed to until they are redeemed or expire, so budget for the share members are likely to redeem rather than for every point issued, and set expiry rules at launch. Read a high unredeemed share as a warning sign rather than a saving: members may not value the rewards or may have forgotten the program. Rewards paid on purchases a loyal buyer would have made anyway add cost without adding sales, and frequent deals can teach shoppers to wait for the next one, so weight rewards toward the behaviors the brand wants more of, such as a second product or a shorter gap between purchases. A program whose rewards cost more than the extra purchases they bring loses money however many members it signs up.

A large nutritional CPG brand shows what the member stage can look like once identity is solved. The brand had an existing influencer rewards program and wanted to turn it into a full loyalty program. Brandmovers built an activity-based program on BLOYL™ in which influencers earned points for missions, social sharing, referrals and purchases of brand products made through a Shopify integration. Of 41,000 members invited by email, 62% enrolled; the program reported a 62% engagement rate among members and more than 16,600 missions completed (disclosed by Brandmovers). These were known influencers rather than anonymous shoppers, so the case shows the member stage, not the identity stage.

The guide to driving ongoing engagement in loyalty programs covers keeping members active over time.

For a CPG brand, loyalty starts with a problem most businesses do not have: not knowing who its customers are. Loyalty programs and promotions narrow it in steps. Receipt validation and direct channels show who some of its buyers are; promotions turn buyers into registrants; a program with quick first rewards, earning beyond the purchase and regular contact turns registrants into active members; and measurement focused on conversion shows which steps are working. Built on clear rules and consented data, that path gives a CPG brand a direct relationship with the people who buy its products, alongside the retailers that sell them.