When sales users convert a lead, files and related records attached to the lead are attached to the resulting contact, account, person account, and opportunity records. This change applies to Lightning Experience, Salesforce Classic, and all versions of the Salesforce1 mobile app.
Items from the following related lists on leads are carried over to the new or existing contact, account, and opportunity during lead conversion.
|Lead Related List||Contact||Account||Person Account||Opportunity|
|HTML Email Status|
|Notes and Attachments|