## Zoho Billing - Product, solutions, integrations, support, and resources Index

Access the complete documentation index at:
https://www.zoho.com/billing/llms.txt

Use this file to discover all available documentation pages before proceeding.

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# What is the use of the Customer Portal?

The Customer Portal is a self-service portal where your customers can manage their subscriptions, download invoices, make payments, and update card details.

Learn more about [functions in the Customer Portal](/billing/help/settings/customer-portal/customer-portal-functions.html).