How do I know if I need to use the IAB integration or not?

Deciding whether to use the IAB integration depends on several factors:

1. Type of Vendors: If you are working with vendors that are part of the IAB's Transparency and Consent Framework (TCF), it's advisable to use the IAB integration. This framework helps in managing consent across different vendors who adhere to the IAB standards.
2. Compliance Needs: The IAB TCF is designed to help organizations comply with GDPR and ePrivacy regulations when processing personal data or accessing/storing information on a user's device. If your operations fall under these regulations and involve such data processing, using the IAB TCF could be beneficial.
3. Operational Requirements: If your digital advertising operations require a standardized method to manage user consents and data processing permissions across multiple vendors, the IAB TCF provides a structured and widely accepted framework for doing so.
4. Vendor Requirements: Some vendors may specifically require IAB TCF compliance for integration. Check with your vendors if they are part of the IAB TCF and if they require integration through this framework.

For more detailed information on the IAB and its integration, you can refer here