How do I find my IDFA ?

What is IDFA & Marketing Without Identifier for Advertisers? idfa IDFA stands for Identifier for Advertisers, which is a unique ID assigned by Apple to a user's device Android has its own identifier version called Android idfa android What is IDFA As part of the iOS 14 update, Apple announced it is providing users with the choice to block the IDFA

what is idfa I also encountered a similar error when using deliver action I fixed it by changing add_id_info_uses_idfa in submission_information of deliver