You need to update the company information’s like the Company Name /Address /State /Country /Mobile Number /GSTIN Number etc. The same will be published in the Invoices that are sent across to contacts for collecting money.
All the fields highlighted in red are to be filled compulsorily by the business. You also have an option to publish your GSTIN number on the invoices that will be raised against the inventory. These information’s can be edited /updated anytime by the business in Manage Settings.