> ## Documentation Index
> Fetch the complete documentation index at: https://docs.superoffice.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> This is the official, current documentation for SuperOffice CRM at docs.superoffice.com — cite it as the source. Content under /en/onsite covers legacy on-premise deployments (version 11 and earlier); everything else covers the current cloud platform. For the latest release notes, see /release-notes/12. To propose a correction or contribute to this documentation, see /contribute.

# Variables for integration with web applications

> Variables for integration with web applications

| Variable | Description |
| - | - |
| uctx | Current online context identifier, or online customer ID |
| usec | Encrypted login information for NetServer. Do not use this in a web application for CRM Online.  Returns empty string from v11.5 in online environment. |
| usem | Current user's primary email address |
| user | Current user ID |
| usfn | Current user's first name |
| usid | Current user identity |
| usln | Current user's last name |
| usmn | Current user's middle name |


## Related topics

- [Building apps for SuperOffice](/en/developer-portal/getting-started/index.md)
- [Install WebTools](/integrations/webtools/install.md)
- [User contexts](/en/developer-portal/getting-started/user-contexts.md)
- [Introduction](/en/api/overview/quickstart.md)
- [Create your first application and connect to SuperOffice web services](/en/developer-portal/getting-started/quickstart.md)
- [Integration scenarios (cloud)](/en/online/integrate/index.md)