Airbnb's data teams faced challenges when evolving their offline data architecture to support new product areas like Experiences and Services in addition to Homes. The blog post details their approach to building a flexible data modeling framework that balances consistency and flexibility across different data teams. Key decisions included choosing between separate and monolithic data models, establishing foundational principles for consistency, and providing guidelines for teams. The experience highlighted the importance of adapting data strategies to fit evolving product needs while managing legacy assets responsibly.