Data Field Guidelines and Best Practices

Data Field Guidelines

• All values in the data object must be strings.

• Non-string values will be automatically converted to strings.

• The data field is optional but useful for passing custom information to your app.

• Data is delivered to the app even when it is in the background.

Best Practices

1. Keep titles concise: notification titles should be short and descriptive.

2. Use data for context: include relevant IDs and metadata in the data field.

3. Topic naming: use descriptive topic names that match your app's notification categories.

4. Token management: keep device tokens up-to-date and remove invalid tokens.

5. Batch requests: when sending to multiple devices, use the tokens array for better performance.