There are many ways how to access, import and export data in Dynamics 365 Finance & Supply Chain Management. Find here a one page PDF summary of 12 common ways. Every solution has it pros and cons.
Since the early days the integration of Dynamics AX ERP and Dynamics CRM was a painful challenge. Microsoft came up with may not so great working solutions. Dual Write is a Power Platform solution for Dynamics 365 Finance / SCM and Dynamics 365 CE. It supports the synchronization beween these two products almost in real time.
I’ve made a short video to demonstrate the synchronization between Finance and CE. A customer is created in CE and becomes immediately a customer in FO. The quotation from CE is synchronized to FO where it is converted into a sales order. The sales order is visible in CE. The order is invoiced in FO and can be reviewed from within CE.