## Documentation Index

Access the complete documentation index at:
https://www.zoho.com/qa/books/kb/llms.txt

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

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# Is it mandatory to select a project while marking the bill as billable for a customer?

No, it is not mandatory to select a Project while marking the bill as **Billable** to a customer.

Here’s how you update your billing preferences:

*   Go to _Purchases_ on the left sidebar and select **Bills**.
*   Click **+New**.
*   Fill in the necessary details such as **Vendor Name**, **Bill#** and **Bill Date**.
*   Choose a customer with whom you wish to associate the bill.
*   Click the **Edit** icon next to _Non-Billable_ which is displayed under the _Customer Details_ drop-down.
*   Update your billing preferences in the pop-up that appears. Check the box next to **Billable** if you wish to bill the item.
*   Click **Update**.

**Note:** It is mandatory to choose a customer in order to associate an item with either a project or to update billing preferences or do both.

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