> ## 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.

# 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

- [Integration scenarios (cloud)](/en/online/integrate/index.md)
- [Application configuration](/en/developer-portal/create-app/config/app-config.md)
- [Variables](/en/automation/crmscript/fundamentals/variables.md)
- [Integration scenarios: Window client](/en/onsite/integrate/win-client/index.md)
- [Substitute Template Variables](/en/api/reference/restful/agent/document_agent/substitute-template-variables.md)
- [Substitute Merge Document Template Variables](/en/api/reference/restful/agent/document_agent/substitute-merge-document-template-variables.md)