Creating invoices without properly setting up the customer can quickly lead to several inconsistencies, such as duplicate records, missing billing details, and poor customer management.
Similar to Items, you can move customers from another invoicing tool or spreadsheet.
Go to Settings -> Integrations -> CRM Integration/Bigin

Important Action:
Similar to organization address format, take a moment to configure your Customer's Billing & Shipping Address Format properly.
Go to Settings -> Customers -> Billing /Shipping Address Format
Insert placeholders to fill in the necessary address lines, tax information and your customer's contact details on the transactions.

Things to Remember
A customer profile is more than just a name and email. It stores payment terms, billing and shipping addresses, so you never have to enter them again. Spending five minutes per client now can save you from embarrassing errors later.

Pro Tip: Add both approvers and payers as contact persons under a single customer profile. It prevents the 'I never received it' excuse.

Watch out: If a customer already has transactions, updating the address at the customer level will not automatically update the address in existing transactions. To update the address in a transaction, you must edit the transaction and use the Edit option below the customer name.

Important Links:
Customers: https://www.zoho.com/invoice/help/contacts/
Customer Preferences: https://www.zoho.com/invoice/help/contacts/contact-preferences.html
Adding Fields to Customers: https://www.zoho.com/invoice/help/contacts/contact-preferences.html#custom-fields
Import Customers: https://www.zoho.com/invoice/help/contacts/#importing-contacts
CRM Integration: https://www.zoho.com/invoice/help/integrations/crm-integration.html
Bigin Integration: https://www.zoho.com/invoice/help/integrations/bigin.html
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