Activity › Forums › Salesforce® Discussions › What is meant by object id prefix in Salesforce? Salesforce® Discussions What is meant by object id prefix in Salesforce? Posted by Anjali on November 2, 2020 at 2:32 PM What is meant by object id prefix in Salesforce? Shweta replied 5 years, 6 months ago 3 Members · 2 Replies 2 Replies Deepak Member November 2, 2020 at 5:14 PM A User record with ID 00561000000Djya has the prefix 005, which is the prefix for the User Object. [adinserter block='9'] Shweta Member November 3, 2020 at 2:36 PM Every ID in the App is either 15 characters or 18 characters (API). The first 3-digits of the ID are always the Entity ID which can be used to determine the type of the entity. Example: Contact ID (003D0000001aH2A) It have Object ID Prefix: 003 Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me