To create an Invoice in Square, the following properties can be provided. Those marked with 

Learn about the essential properties needed to generate an invoice with Square. Find out which fields are mandatory and explore comprehensive information on both the Invoice and Items sections. Discover the data type and description for each field, along 

Delete Draft

Invoice - Square

Create

Breadwinner Payments Docs

App Installation

Connect to Stripe

Connect to Braintree

Connect to Square

Connect to Payment Processor

Customer Match

Update Page Layouts

Getting Started

Create Customer

Create Transaction

Create Subscription - Stripe

Create Subscription - Square

Create Subscription

Create Invoice - Stripe

Create Invoice - Square

Create Invoice

Guided Wizard

Transaction

Invoice

Button URL Structure

Button URL Generator

Custom Guided Wizard

Braintree

Square

Stripe

Auto-match Payment Transactions with Customers

Custom Fields

Additional Configuration

API Overview

Customer

Subscription

Customer Portal Session URL

Checkout URL

Request

Response

Global API

Requirements

ERD / Object Structure

ID Locations

Technical Resources

Getting Help

Field Name	Data Type	Description
dueDate*	DateTime	"dueDate" value is required to create and send the Invoice.
processorId*	String	Id of the Sqaure processor connected to your Salesforce org
processorCustomerId*	String	Customer Id in the Processor (Find this)
collectionMethod	String	readOnly field
locationId	String	If not specified, Square gets the primary location id
processorInvoiceId	String	Id of the created Invoice in the Sqaure processor
processorPaymentMethodId	String	Due date must be current date to charge the customer immediately
salesforceId	String	readOnly field
salesforceAccount	String	Id of the Account in Salesforce org to which the Customer is matched
salesforceContact	String	Id of the Account in Salesforce org to which the Customer is matched

Field Name	Data Type	Description
processorPriceId*	String	Id of the specific Product's price that is getting added to the Invoice. Note: this is the Id in the Processor not in Salesforce.
quantity*	Integer	The quantity of products for which Invoice to be created
amount	Decimal	readOnly field
chargeCurrency	String	readOnly field
description	String	readOnly field
salesforcePriceId	String	Salesforce Id of the specific Product's price that is getting added to the Invoice.
status	String	readOnly field
unitAmount	Decimal	readOnly field
unitAmountDecimal	Decimal	readOnly field