Update Salesforce Schema
- Open Setup>Object Manager from the upper menu options.
- Click on the Account.
- Click on the Fields & Relationships.
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Use the New button to create
Type Label Length Field Name Text Company 50 BillingCompany Text Email Address 100 BillingEmail Text First Name 30 BillingFirstName Text Last Name 30 BillingLastName The "_c" will be added to the Field Name to show that it is a customized field and will be used for API Name.