Hello, in addition to information that is shared about Contact Endpoint, Invoice Contact > Phone field can be fetched through Customer Invoice Endpoint. Contact Phone can be either automatically populated in the invoice based on main contact field that can be found in Customer Card or can be edited by overriding contact info in the Invoice. 1-Customer Card : Main Contact : Phone1
2) Customer Invoice: Override Contact : Phone1
This value will be returned in GET > Customer Invoice >
"invoiceContact": {
"contactId": 0,
"businessName": "string",
"attention": "string",
"email": "string",
"phone1": "string",
"overrideContact": true
},
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