## Zoho Billing - Product, solutions, integrations, support, and resources Index Access the complete documentation index at: https://www.zoho.com/en-ng/billing/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # How do I check if my customer has viewed the quote/invoice that I’ve sent them? ![](/billing/images/ue-resources/llm-utility-menu/sparkle-ai.svg) Explore With AI ![](/billing/images/ue-resources/llm-utility-menu/dd-arrow.svg) * [Open in ChatGPT (opens in new tab)](https://chatgpt.com/?prompt=Analyze+the+content+of+https%3A%2F%2Fwww.zoho.com%2Fen-ng%2Fbilling%2Fkb%2Fquotes%2Fquote-customer-view.html+and+understand+it+thoroughly+so+I+can+ask+questions+about+it.) * [Open in Claude (opens in new tab)](https://claude.ai/new?q=Analyze+the+content+of+https%3A%2F%2Fwww.zoho.com%2Fen-ng%2Fbilling%2Fkb%2Fquotes%2Fquote-customer-view.html+and+understand+it+thoroughly+so+I+can+ask+questions+about+it.) * ![Copy for LLM](/billing/images/ue-resources/llm-utility-menu/copy.svg) Copy for LLM * [![View as Markdown](/billing/images/ue-resources/llm-utility-menu/md.svg) View as Markdown (opens in new tab)](/en-ng/billing/kb/quotes/quote-customer-view.md) To check if your customer has viewed the quote/invoice you sent, you need to have customer portal enabled for your customer. Once your client views the quote/invoice, an ’eye’ icon will be shown next to the invoice/quote denoting that the customer has viewed the quote/invoice and will also be seen in the quote/invoice window. A history notification ‘Quote viewed in portal’ or ‘Invoice Viewed in portal’ will also be available in the quote/invoice window notifying you. You will also receive a notification when your customers view the quotes that you’ve sent them. To view the notification, click on the bell-shaped icon present on the top right corner of the page. * * *