Hi can i add qty total in sale invoice. i need total in pcs only. how can i modify custom theme
The forum is not a programming guide and does not cover how to program in Liquid
There has been a few topics on this question, so using the search facility may help.
Note that in general, having a total quantity on an invoice does not make much sense when the different lines use different units eg kg, litre, unit as adding the numerical values would be a nonsense
i need only in pcs, i could not use kg, liter etc. it is possible to modify in custom theme?
I think so - but you need to program in Liquid language - either yourself or hire a programmer.
There is no guarantee that your new theme will work with future versions of Manager as there may be changes to the Manager database and/or code which will render you theme invalid
See this guide https://www.manager.io/guides/17115
Manager has only one item unit.
in inventory item you can add the unit name
please find the guides for more information