The Commerce Stack Audit: Why Integration Depth Beats Feature Count in Client Retainers

E-commerce tools now decide whether an agency retainer is defensible or commoditized. The vendors that bundle support, search, and personalization into one platform concentrate pricing power, while agencies that own the data flow between those platforms keep the margin. The strategic work is not picking a winner; it is mapping which layer of the buying journey each tool actually controls before a client signs.