# 2020-07-15
* We've added `/sales_invoices/:id/mark_as_dubious` to sales invoices. [Read more in the sales invoices API documentation](/api/sales_invoices/#patch_sales_invoices_id_mark_as_dubious).
* We've added `/external_sales_invoices/:id/mark_as_dubious` to external sales invoices. [Read more in the external sales invoices API documentation](/api/external_sales_invoices/#patch_external_sales_invoices_id_mark_as_dubious).
* We've added `/external_sales_invoices/:id/mark_as_uncollectible` to external sales invoices. [Read more in the external sales invoices API documentation](/api/external_sales_invoices/#patch_external_sales_invoices_id_mark_as_uncollectible).