Apex Reference Guide
Summer '26 (API version 67.0)
Spring '26 (API version 66.0)
Winter '26 (API version 65.0)
Summer '25 (API version 64.0)
Spring '25 (API version 63.0)
Winter '25 (API version 62.0)
Summer '24 (API version 61.0)
Spring '24 (API version 60.0)
Winter '24 (API version 59.0)
Summer '23 (API version 58.0)
Spring '23 (API version 57.0)
Winter '23 (API version 56.0)
Summer '22 (API version 55.0)
Spring '22 (API version 54.0)
Winter '22 (API version 53.0)
Summer '21 (API version 52.0)
Release Notes
CommerceOrders Namespace
ComplianceMgmt Namespace
Context Namespace
DataRetrieval Namespace
ExternalService Namespace
Flowtesting Namespace
IndustriesDigitalLending Namespace
InvoiceWriteOff Namespace
PlaceQuote Namespace
RevSignaling Namespace
RevSalesTrxn Namespace
Slack Namespace
AccessType Enum
CallbackStatus Enum
generateThreadingMessageId(caseId)
getCaseIdFromEmailHeaders(headers)
getCaseIdFromEmailThreadId(emailThreadId)
DomainType Enum
Enum Methods
Exception Class and Built-In Exceptions
JSONToken Enum
LoggingLevel Enum
Quiddity Enum
Trigger Class
TriggerOperation Enum
Newer Version Available
Cases Methods
The following are static methods for Cases.
-
generateThreadingMessageId(caseId)
Returns an RFC 2822-compliant message identifier that contains information used to match the email and its replies to a case. -
getCaseIdFromEmailHeaders(headers)
Returns the case ID corresponding to the specified email header information, or returns null if none is found. -
getCaseIdFromEmailThreadId(emailThreadId)
Returns the case ID corresponding to the specified email thread ID. (Deprecated. Use getCaseIdFromEmailHeaders and EmailMessages.getRecordIdFromEmail instead.)