Bank details on invoice

Hi bdy can u explain me how to show bank details on sales invoice

https://www.manager.io/guides/9835 or https://www.manager.io/guides/8941.

but we need bank details show downside of invoicee

If by downside you mean at the bottom, then custom fields are printed at the bottom of the invoice

Yes

Follow the instructions in the 2nd guide linked to by Tut so

but this optaion not show automatic we need automatico show

You have to read the guides carefully and fully - they are quite complete and explain how to do more or less everything

The 2nd guide linked to contains the following

Lastly, default text that you want to appear in a custom field on all new forms should be entered under Form Defaults for that transaction form.