> For the complete documentation index, see [llms.txt](https://developers-v3.zortout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers-v3.zortout.com/announcements/api-update/29-sep-2022-update.md).

# \[29 Sep 2022] Update

### Add uniquenumber parameter

Add "Unique Number" to prevent duplicate transaction.

> [ADDORDER](/api-reference/order.md#add-order)
>
> [ADDPURCHASEORDER](/api-reference/purchase-order.md#add-purchase-order)
>
> [ADDTRANSFER](/api-reference/transfer.md#add-transfer)
>
> [ADDQUOTATION](/api-reference/quotation.md#add-quotation)
>
> [ADDINCOME](/api-reference/finance.md#add-income)
>
> [ADDEXPENSE](/api-reference/finance.md#add-expense)