We can see in this drawing that "Web Services" are described on the ERP side.

But is this referring to the concept of Web Services simply because data is being transferred in XML format, or is it actually referring to BC's exposed SOAP-based Web Services, which Microsoft has deprecated and will shut down in 2026?
Reference: https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/webservices/soap-web-services