Facebook Login ID - this option may be available to you if you use Facebook authorisation on your site. If it is - after successful user authorisation via FB you can get this parameter and send it along with events.
Email and phone number - If a user lists their phone number and/or email somewhere on your site - send this data along with your Facebook events.
@shilpa whatever tag/script that send your purchase events need to be populated with those parameters. So the question is how do you send pixel piurchase events and do you have any control over that
CAPI or CAPIG are irrelevant where payload is concerned
Razorpay gateway tells me nothing unfortunately, question was how those purchase events get reported to the pixel and do you have control over that, this would be step 1 in helping you send tose additional parameters.
EQM is determined solely by the amount of user data you’re sending, so again, question is how do you report to pixel and do you have any control over that