| Siebel Loyalty Administration Guide > Siebel Loyalty Workflow, Task Flow, and Methods Reference > Siebel Loyalty Workflows > LOY Engine - Update Program Cache Workflow
 The LOY Engine - Update Program Cache workflow, shown in Figure 37, updates the cache used by the Loyalty Engine without restarting the Loyalty engine. 
Figure 37.	LOY Engine - Update Program Cache Workflow
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 Workflow Description. This workflow performs the following action: 
Invoke Service. This step calls the method UpdateCache of the LOY Processing Engine Business Service, which updates the cache for the program.
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