Examining rumor Walmart tracks customers even when they pay in cash

Walmart gave Snopes a possible explanation for a customer being sent an email about a product he purchased with cash.

Does Walmart track customers even when they pay in cash? What we know

Walmart gave Snopes a possible explanation for a customer being sent an email about a product he purchased with cash.
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The Supply Side: Walmart touts gains with Vizio in first year

It’s been one year since Walmart acquired Vizio and its SmartCast Operating System for $2.3 billion. The deal integrated ...