Please add Purchase order option
Thank you for posting on our feedback forum.
Since Zoho Invoice focuses on the sales cycle of your business, purchase orders is not a part of it. However, you can very well use Zoho Books for this.
Zoho Books is an accounting tool and a super-set of Zoho Invoice. It can help you manage both the account receivables and payables. Hence, you can easily create purchase orders too.
To upgrade from Zoho Invoice to Books, you can refer these steps:
If you have any further questions, you can reach out to support[at]zohoinvoice[dot]com