So we’ve all eyeballed the various standard object Key Prefixes at some point and noted:
001
isAccount
003
isContact
etc
I’ve always wondered: what was
004
? What about002
?
Answer
002 is a Note, 004 has apparently not been used.
Source:
System.debug(Id.valueOf('002000000000000').getSObjectType()); // Note
System.debug(Id.valueOf('004000000000000').getSObjectType()); // Cannot locate Apex Type for ...
Attribution
Source : Link , Question Author : Matt and Neil , Answer Author : sfdcfox