Zach Schieffer
Founder of ZHS Ecom. He writes this knowledge base.
Zach Schieffer is the founder of ZHS Ecom, an email and SMS retention agency for direct-to-consumer brands. He started ZHS after years of building and running lifecycle marketing for ecommerce stores, and he still writes and reviews the guides in this knowledge base.
ZHS publicly reports more than $50 million in aggregate platform-attributed client revenue across 50-plus DTC brands over six years. This is a self-reported attribution figure, not an independently audited causal-lift measurement. Every guide is reviewed against its documented sources, operating assumptions, and caveats.
He writes about email and SMS flows, campaign strategy, Klaviyo setup, deliverability, segmentation, and the benchmarks that tell you whether a retention program is actually working.