Hi,
What platform do you use for E-Commerce? By Business Central I assume you are talking about dynamics 365 Business Central?
The lightest and faster combination would be Azure Event Hub with Azure Functions. You can also use Event hub with Logic Apps. Logic Apps is a little more expensive but easier to use and faster to develop.
If the Volume is not too high, you can also use Event hub with Power Automate.
One thing to bear in mind when using Event Hub is parallelism. Both Azure Functions and Logic apps can create duplicates if the integration logic is too long, and several parallel instances are allowed.
Azure Service Bus is a more robust option. Service bus offer peek-lock to avoid a parallel instance to process the same message. Service Bus with Logic apps offers the simplest option with more features.
Bear in mind either Bus or Hub can eventually fail. Very rare but can happen. You need to add some architecture to capture any failure (logs, consolidation reports)
You also may want to enable duplication detection and define some duplication rules.
some more on my blog: https://brunolucas.blog/2023/03/19/azure-event-hub-vs-service-bus-for-dataverse-or-graph-api/
I have this code samples: https://github.com/BrunoLucasCloud/Dataverse_Azure_Integration
Good to have a look, but need some refining I'll be adding soon.