Are there restrictions on retargeting abandoners?

As a Shopify store owner running multiple ad campaigns, I've been wrestling with the delicate balance of re-engaging potential customers without crossing legal or ethical lines. Every time someone abandons their cart, I see potential revenue slipping away. But I'm constantly worried: How aggressive can I be with retargeting? Are there specific rules I need to follow to avoid annoying customers or, worse, violating data protection regulations? My team has been cautious, knowing that one misstep could damage our brand's reputation or even lead to potential legal complications. We've seen horror stories of businesses getting hit with massive fines for improper data usage, and I'm determined to build a retargeting strategy that's not just effective, but also completely compliant. The stakes are high – we're talking about maintaining customer trust while trying to recover potentially lost sales. I need a systematic approach that respects user privacy, provides genuine value, and keeps us firmly on the right side of marketing regulations.