Hello.
I have a new potensial client who wants a webshop. He has asked me to estimate an integration to sync items, orders and stock between the webshop and dynamics 365.
I have been trying to get information on how to get started, but there are SO much information about the CRM\ERP, and for every documentation\guide i read i get more confused. I've been reading about:
API(v1.0) for Dynamics 365 Business Central
Power apps
COMMON DATA SERVICE
Custom connector
Dynamics NAV Web Services
As far as i can see the API for dynamics is what i need to send updates to the dynamic when a product is sold in the webshop.
But what if a product changes in the CRM, and the webshop needs the update? Do i use webhooks, or am i supposed to set up a rest api on both the webshop and dynamics?
And Powerapps seems like a whole other field?
When i tried to set up a common data service i was asked to insert a url. Im so confused. Not even sure if this is the correct approach.

Any advice on where to start is much appreciated.