I assume you mean you have created two independent data sets, one for your personal finances and one for Business finances.
Independent is the key thing here there are no linkages between separate data sets. You need to use accounting techniques here to move funds.
In the personal finances data set you would create two new categories say, Money to Business and Money From Business. Likewise in the Business data set Money to Personal, Money from Personal (name them what you like). Now you just have to enter a transaction into each data set using these new categories to indicate the source/destination of the funds.