Dynamics 365 for Finance and Operations comes with great features to support many businesses from different industry areas. Most of the time, 80% of the business need can be fit with out-of-box features provided within Dynamics 365 for Finance and Operations, but there are those 20% of the requirements for which you might need to either change the business process or do some enhancement to meet that need.

When these business requirements become very common within an industry, sometimes ISVs develop the vertical solution that sits on top of standard Dynamics 365 for Finance and Operations. These ISV solutions are developed in such a way so it can be plug-and-play, which means as a customer/partner you wouldn't have to do much to implement these ISV solutions. Here are some examples of business areas that have ISV solutions:

• Sales tax
• EDI integration
• Multi-tier pricing

It is important to check for an ISV solution before you start on any big enhancement as there might already be a solution that may save you a lot of effort.