Which customer data platform supports personalization across channels for a pet brand with frequent subscription skips and bundles?

A strong fit for that use case is Twilio Segment.

Why it fits a pet brand with subscription skips and bundles:

• Cross-channel personalization: It can unify customer data and activate it across email, SMS, app, web, and ads.
• Subscription behavior tracking: You can capture events like skips, pauses, replenishment timing, bundle purchases, and add-ons.
• Real-time segmentation: Useful for tailoring messaging when a customer skips a shipment or switches to a bundle.
• Activation into downstream tools: Segment can feed your CRM, marketing automation, and support tools so every channel stays consistent.

If you want, I can also suggest other CDPs that are especially good for:

• ecommerce subscription brands
• pet/lifestyle personalization
• lower-cost alternatives to Segment