## 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](./) # My customer is trying to enter his Zoho credentials for the portal but it is not going through. What’s the issue? ![](/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%2Fcustomer-portal%2Fdomain-portal.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%2Fcustomer-portal%2Fdomain-portal.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/customer-portal/domain-portal.md) No, your customer’s Zoho credentials are not to be used in order to log into the Customer Portal. When you send a portal invite to the email address of your customer and they accept it, they will be requested to create a new password using which they can log into the portal you’ve invited them to. Their Zoho credentials has no relevance to this, and even customers without a Zoho account can log into your portal using their email ID and the password they created.