# Glossary

## Template 

Template is a predefined/pre-configured entity that can be used as a basis and extended if needed for the custom scenario. Template can not be used via API or SDK to prevent statistics data loss and  project unrelated payments. Templates are useful for testing and are accessible via playground. 

> ❗️**Note:** Not all services have templates, In some cases the service is completely unique and fully tailored to user requuirements 

<figure><img src="/files/mLnPBm3Lr5qFBEzDE322" alt=""><figcaption></figcaption></figure>

## Instance&#x20;

Instance is a personalized C4AI service item configured for the user specific use case. Instances can be used to invoke them using Elastic Endpoint service. Each Service Instance has a connectivity to the [project](/concept/organization-structure.md) that provides a distributed pricing reporting and budget planning.&#x20;

<figure><img src="/files/O7kH0uJNzwn9usXBZSSr" alt=""><figcaption></figcaption></figure>


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