Regenerating/ updating a staging table in Dynamics 365 has literally been made as easy as a one click operation but somehow not well documented so I though i’d write a quick overview on how to update or regenerate a staging table based on your Data entity changes.
Open your data entity in visual studio and right click on the entity name like below this will show you the two options. Please note that if you regenerate a table all custom changes you made to that table will be lost. However if you use the update table option, only new changes will be added. For example if you add a field only on staging table and regenerate staging table the custom field will be lost, therefore if you would like to maintain your additions and update, use update staging table option.
Mohsin Khalid 
I dont see the update or regenerate a staging table option. How do I see these options?
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