Sets the value of the given key if the key exists.
            
Namespace: CMS.DataEngineAssembly: CMS.DataEngine (in CMS.DataEngine.dll) Version: 8.0.0.0 (8.1.5347.20411)
Parameters
- keyName
 - Type: 
System String
Key name 
- siteIdentifier
 - Type: CMS.DataEngine SiteInfoIdentifier
Site identifier (site ID or site name), see SiteInfoIdentifier and InfoIdentifier for more information 
- value
 - Type: 
System Object
Key value 
- logSynchronization (Optional)
 - Type: 
System Boolean
If true, synchronization task is logged 
See Also