Login into MasterGST using same email and password as you registered.
Click on clients from the top menu bar.
Click on company name , you will get a page with company details. In the Left side menu click on Configurations.
You will get page with all Configurations. If you want to add Custom Fields, Click on Invoice Configurations.
In this step you can add or change the Custom Fields for
- Sales Invoices
- Purchase Invoices
- Print Invoices
User can able to give label or name for the custom filed for sales and purchases differently.
Click on save to save all the changes.
If you check the Invoices it will be according to all the above configurations.