How to find contacts that have been sent through iMessage

How to find contacts that have been sent through iMessage? When I open a conversation with friend, I used to click on info button and I could scroll throught all attachments and there also used to be all sent contacts that he shared with me throught the time. Now the contacts are missing, I can find images, documents etc. but no contacts. Is there any way I can find them easily or I have to scroll through years of conversation now? Thanks for help