Activity › Forums › Salesforce® Discussions › What is Callout and Callin in Salesforce? Tagged: Call in, Callout, Salesforce API, Salesforce Data Salesforce® Discussions What is Callout and Callin in Salesforce? Posted by MOHIT on January 30, 2020 at 1:16 PM What is Callout and Callin in Salesforce? krati vishnoi replied 6 years, 3 months ago 2 Members · 1 Reply Call inCalloutSalesforce APISalesforce Data 1 Reply krati vishnoi Member January 30, 2020 at 4:51 PM A ‘callout‘ is any https call that accesses an external URL — some other web service or website. A ‘callin‘ would be the opposite — some external web service or application using the Salesforce API to access Salesforce data. This reply was modified 6 years, 2 months ago by Forcetalks. Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me