# Why can't I mark an invoice sent?

Check its draft status, positive total, action permission and posting date.

Canonical: https://demo.qixcount.com/help/faq/invoice-posting-blocked

The separate send action needs *Send invoices* permission. The invoice must be a draft with at least one line and a positive total. Posting uses the invoice date, so a closed or locked period or the backdating limit can block it. Nonprofit also applies its posting setup and coding checks. If creation saved a draft before posting failed, open that draft instead of creating another invoice. See [Send an invoice](https://demo.qixcount.com/help/invoicing/send-an-invoice).