Reimplementation from NAV 2009 R2 classic to Dynamics 365 Business Central Question?

Business Central/NAV Technical Forum
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Hi Folks -

One of our customer who are on NAV 2009R2 classic client intend to do a re-implementation in Dynamics 365 Business central. Their NAV 2009 R2 database is heavily customized with even NAV base code being modified or commented out to meet their business requirement. In 365 BC on premise I am aware that you can still modify base Nav code but MS will take away that in coming months and future upgrades will be a huge issue. Having said that my question is :

  1. With the base Nav code heavily modified in customer database, In Business central can they get around standard NAV base code to get the same functionality what they have currently in Nav 2009 or do they have to change their business process?

  2. Can Extensions be used with such heavily customized database? If not what are the other alternatives that are possible?

  3. Will data migration be a issue from NAV 2009 to 365 BC?

Any help is highly appreciated.

Thanks

S.

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  1. With the base Nav code heavily modified in customer database, In Business central can they get around standard NAV base code to get the same functionality what they have currently in Nav 2009 or do they have to change their business process?
    如果沒有修改到核心程式代碼，可以繼續使用，因為Business Central仍然支援使用C/SIDE來維護舊有的物件。但是，建議重新用AL (Application Language) 開發會比較好，因為你不知道什麼時候開始微軟不支援C/SIDE。
    第2及第3點提問，建議找導入廠商解答，第3點一定是沒有問題，要花多少錢解決而已。