> For the complete documentation index, see [llms.txt](https://docs.digit.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digit.org/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions.md).

# Common Functions

An illustrative guide to using standard HCM features shared across campaigns

These are standard features that can be used as-is across any campaign, depending on the requirement, with minimal configurations, and can be shared with other products/services as well.

Click on the links below to learn more:

* [Manage Users](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/manage-users.md)
* [Scan 2D Voucher](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/scan-2d-voucher.md)
* [Proximity-Based Search](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/search-using-proximity-scanning.md)
* [Voucher-Based Registration and Distribution](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/registration-and-distribution-voucher-based.md)
* [Track Beneficiary Referrals](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/track-beneficiary-referrals.md)
* [Track Side Effects for Beneficiaries](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/track-side-effects.md)
* [Track Adverse Events](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/track-adverse-events.md)
* [Health Facility Referral ](/health/access/public-health-product-suite/health-campaign-management-hcm/hcm-user-manual/common-functions/track-referrals.md)


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