Ensuring your data stays accurate in a setup with multiple databases can be a bit challenging. But don’t worry! It’s definitely something you can manage if you follow these helpful tips from my own experience:

1. Use Transactions: Make sure to use transactions, especially if you're working with SQL databases. They are really important because they ensure that a group of actions either all works or none do. This keeps your data safe!

2. Data Validation: It's a good idea to set up rules for checking data both in your application and in the database. This way, you can catch mistakes early on and make sure only the correct data is stored.

3. Regular Backups: Always back up your data regularly for all databases. This helps you avoid losing anything important if something goes wrong unexpectedly.

4. Linking Databases: If you can, set up connections between your databases so that they work together properly. This helps keep your data consistent.

Remember, staying proactive and taking these steps will help keep your data in good shape!