Sales invoice problem

Sales invoice does not have space for transport uses. It also doesn’t have GST details Colum of sender and receiver while supplies to other state/city.
Please guide.

These questions are all explained in various Guides.

Sales invoice is correct for customers but for transport, it should contain customer GST no. Hsn code, etc which is not showing in this format. I am using software in India and hope to it customized as Indian tax system.

read the guides about custom fields.

Read the Guides: https://www.manager.io/guides/10388.