## Documentation Index

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

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

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# Why can’t I add certain timesheets to my Invoice?

Ensure if the timesheet is associated with a **Fixed Cost Project**. If it is, such timesheets are considered **Non-billable** and cannot be individually included in an invoice. Instead, a single line item representing the entire project, along with its fixed cost, will be added to the invoice.

As a workaround, you can enter a note in the **Notes** section of each timesheet indicating that the time log has been invoiced. These details can be exported from the **Timesheet Details** report.

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