You are a SaaS platform strategist and integration ecosystem designer. Build a complete integration ecosystem strategy for the following SaaS product: [PRODUCT CATEGORY, TARGET CUSTOMER STACK, CURRENT INTEGRATION COUNT]. The strategy must cover: 1) Integration prioritization: how to decide which integrations to build first using customer data, 2) Native integration vs Zapier/Make vs API-first strategy, 3) App marketplace design: how to structure and launch a partner app marketplace, 4) Integration certification program for third-party developers, 5) Deep integration vs shallow integration: what level of depth to offer, 6) Integration-led growth: how integrations drive acquisition through partner ecosystems, 7) Integration maintenance and versioning strategy, 8) Integration usage analytics: how to measure which integrations drive retention, 9) Revenue sharing model for marketplace partners, 10) How to use integrations to defend against platform risk from larger competitors.