Custom report

how can i make custom report " total quantity sold per customer "

Read the Guide: https://www.manager.io/guides/18075. Experiment with the feature until you get the report you want.

can you give me the right build for " total quantity sold per customer "

@Tareq_wael

try this:

This will give you quantities sold of inventory items for September 2018 by customer across your sales invoices.