Fashion App Notification Strategy

I need a clear, actionable strategy for push notifications in my fashion shopping app. The focus is on NEW ARRIVALS alerts that fire the moment a user browses a specific category—no delays, the message must go out immediately.

Here’s the flow I want mapped out:

• Identify the in-app event when a customer lands on or scrolls through a category page.
• Capture the event and trigger a personalised “New Arrivals” notification in real time.
• Outline the copy style, ideal character count, imagery guidelines and suggested deep-link destinations so the alert feels helpful, not spammy.
• Recommend the technical setup (e.g., Firebase Cloud Messaging, OneSignal, or another SDK you trust) including segmentation tips, rate-limiting safeguards, and any analytics hooks I should add to measure open rate and conversion.

Deliverables
1. Architecture diagram or flowchart showing where the trigger sits in the existing app journey.
2. Messaging playbook with at least five example notifications tailored for different categories (e.g., shoes, dresses, accessories).
3. Implementation checklist developers can follow step-by-step.
4. KPI dashboard outline highlighting the metrics to track once the system is live.

If you have launched similar real-time campaigns before, especially in e-commerce or fashion, let me see a quick summary so I can gauge fit.