Statement 1 (No): The scenario explicitly states the company does not plan to use development tools or plug-ins. While the Power Platform allows connectivity to many systems via Standard Connectors, a "proprietary database" implies a non-standard system for which no pre-built connector exists. To synchronize with such a database, one would typically need to build a Custom Connector (which often requires defining API specifications/OpenAPI, a development task) or write a Plug-in (custom code). Since these methods are restricted by the "no development tools or plug-ins" constraint, this action cannot be performed using only out-of-the-box configuration.

Statement 2 (Yes): Creating invoices from orders and sending them is a core capability of Power Platform apps (specifically Model-driven apps and Dynamics 365 Sales). The conversion of an Order to an Invoice is a standard business process flow available via the command bar configuration. Furthermore, sending the invoice can be automated using a Power Automate cloud flow with a standard email connector (e.g., Outlook), which is done via the visual designer (low-code), satisfying the "no development tools" requirement.

Microsoft Learn - Connectors overview: "Connectors provide a way for users to connect their accounts and leverage a set of prebuilt actions and triggers... [Custom connectors] allow you to connect to services that aren't available as prebuilt connectors." (Since the database is proprietary and not prebuilt, and custom connectors involve development effort/API definitions, this is not possible under the constraints).

Source: https://learn.microsoft.com/en-us/connectors/connectors

Microsoft Learn - Manage sales orders: "Create or edit an invoice... You can create an invoice from an order or a quote." This confirms the native capability to process orders into invoices without code.

Source: https://learn.microsoft.com/en-us/dynamics365/sales/create-edit-invoice

Microsoft Learn - Use a flow to update a row: Demonstrates using Power Automate (visual designer, no code) to automate tasks related to Dataverse records (like Orders/Invoices).

Source: https://learn.microsoft.com/en-us/power-automate/dataverse/update-row