It’s been a long time since the general store was the go-to place for consumers to pick up everything they needed from week to week. But variety hasn’t just increased over the years, it’s diversified. And as a result, today’s consumers aren’t just shopping a single channel—they blend channels and shop fluidly according to their unique needs.

While this omnichannel approach presents myriad opportunities for consumers, it can be challenging for retailers, particularly because no two consumers—or categories—have the same omnichannel profile. So to succeed in today’s environment, retailers and manufacturers need to be aware of the consumer path to purchase across all channels, including online.

In a recent study into U.S. omnichannel shopping, NielsenIQ uncovered several insights around impulse shopping. For example, while many might assume that impulse purchases happen more often in physical stores than online, there are several categories where online impulse shopping outpaces those in brick-and-mortar environments.

Specifically, consumers make more online impulse purchases across the grocery, household care, snack and personal care categories than they do at brick-and-mortar stores. In fact, U.S. consumers are 5% more likely to make an impulse purchase in the grocery category online than in a physical store. This doesn’t mean, however, that online shopping is a breeding ground for impulse shopping. There are many categories where impulse shopping is more common at physical stores, including frozen food, which consumers are 9.4% more likely to buy on impulse in-store than online.

While overall trends at the department level are important, these omnichannel insights become more actionable at a category level. Some categories retain their impulsivity online, but drilling down into department-level insights highlights that some categories see impulse purchases swing in either direction. To underscore the importance of specific, granular shopper insights, category-level information will help retailers and manufacturers assess the true opportunities that exist in their categories, and more importantly, how to act on them to benefit sales.