In the document "https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/api-reference/v2.0/api/dynamics_customer_get" the columns are described that will be in the response of a Get Customers request. However, the column "Language" is missing.
Please add this column to the response.
Below you'll find an example of all the columns that are returned:
"id": "f2a5738a-44e3-ea11-bb43-000d3a2feca1",
"number": "10000",
"displayName": "Adatum Corporation",
"type": "Company",
"addressLine1": "192 Market Square",
"addressLine2": "",
"city": "Atlanta",
"state": "GA",
"country": "US",
"postalCode": "31772",
"phoneNumber": "",
"email": "robert.townes@contoso.com",
"website": "",
"taxLiable": true,
"taxAreaId": "90196a90-44e3-ea11-bb43-000d3a2feca1",
"taxAreaDisplayName": "ATLANTA, GA",
"taxRegistrationNumber": "",
"currencyId": "00000000-0000-0000-0000-000000000000",
"currencyCode": "USD",
"paymentTermsId": "04a5738a-44e3-ea11-bb43-000d3a2feca1",
"shipmentMethodId": "00000000-0000-0000-0000-000000000000",
"paymentMethodId": "3b196a90-44e3-ea11-bb43-000d3a2feca1",
"blocked": " ",
"lastModifiedDateTime": "2020-08-21T07:38:44.293Z"
Business Central Team (administrator)
Thank you for this suggestion! Currently this is not on our roadmap. We are tracking this idea and if it gathers more votes and comments we will consider it in the future. Best regards, Business Central Team