Activity › Forums › Salesforce® Discussions › What is an API callout in Salesforce? Salesforce® Discussions What is an API callout in Salesforce? Posted by Ratnesh on February 12, 2020 at 2:31 PM What is an API callout in Salesforce? Anjali replied 6 years, 3 months ago 3 Members · 2 Replies 2 Replies MOHIT Member February 14, 2020 at 8:47 AM In Salesforce a ‘callout’ is any https call that accesses an external URL — some other webservice or website. A ‘callin’ would be the opposite — some external web service or application using the Salesforce API to access Salesforce data. [adinserter block='9'] Anjali Member February 14, 2020 at 1:01 PM From one site when an external URL is accessed like any other webservice or website, then it is done through callout. Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me