Nice article.

And if the conflict was on the [Unit Stock] ?

Example:

In the article table, article X's article stock is 5

subscriber 1 sold 1 unit and updated article stock to 4

subscriber 2 sold 2 units and updated article stock to 3

when they synchronize, there will be a conflict on article stock, and none of them is right. The right value should be 5-1-2 = 2

How can i accomplish this?

Thanks for your help!