The "Own invoices" functionality from the "Registration" menu is used to issue any invoices in the system. After selecting this functionality, a list of issued invoices is displayed, with the "View", "Edit", "Delete" buttons next to each of them. The "Issue" button is visible under the list of issued invoices.

To issue an invoice, click the "Issue" button. The invoice data form will then be displayed. Fields with default values, defined in the jHIS system configuration, are immediately filled in. The addressee of the invoice may be any entity, in particular a patient or an institution registered in the jHIS system. To facilitate entering data into the invoice in such cases, please use one of the fields highlighted in orange: either for the patient or for the institution. By entering in such a field, in the case of a patient, the beginning of the name/surname, his PESEL number or date of birth, and in the case of an institution, the beginning of its name, a list of suggestions will be displayed. After clicking the appropriate patient/institution on the list of suggestions, the buyer's details in the invoice form will be automatically completed. An invoice can contain any number of items. One line corresponds to one item at the bottom of the form. Each click on the "More items" button displays another line allowing you to enter another item. Empty lines are ignored when saving. At the end of each line there is a trash icon, which, when clicked, clears the contents of that line. Gross prices are automatically calculated from net prices according to the selected VAT rate.

After completing the form, click the "Issue an invoice" button. The system will automatically assign a number to the invoice in accordance with the numbering rules used when issuing invoices in patient records. The system informs about the success of the operation with an appropriate message and displays a link to download the invoice. You can always view/download/print the invoice by clicking the "View" button next to a given invoice on the list of issued invoices.

If a mistake was made when issuing an invoice, you can make appropriate corrections by clicking the "Edit" button next to a given invoice on the list of issued invoices. An invoice form will then be displayed, identical to that in the case of issuing a new invoice, but filled with data. After making corrections, save the data by clicking the "Save changes" button.

If an invoice was issued by mistake, it can be deleted by clicking the "Delete" button next to a given invoice on the list of issued invoices and confirming your intention by pressing the OK button in the prompt that appears.