How to add SPI for existing vendors?

Until today, as indicated in this documentation It is not possible to add SPIs to IAB vendors, since IAB vendor information is populated directly from the IAB, and they do not yet support CPRA.

In this case, you need to create a custom vendor instead of using the IAB option and + assign purposes for each vendor collecting SPI.

For a detailed visual guide and further instructions on how to add SPIs to your custom vendors, please consult this documentation: "Add SPIs to Your Vendors."