What is the right way to categorize expenses in BUSY?

If you want to categorize you expenses in BUSY, you can use below methods:
Method 1: In BUSY you can use Account Group Option, by using this you can create sub group under the primary expense group and categorize your expense. To know how to create Account Group can follow these steps:
Step 1: Open BUSY and select the company you want to work with. Then, go to the Administration tab on the top menu bar and click on Masters.
Step 2: Select Account Group option and click on Add.
Step 3: Enter your account group name and set Primary Group as N. Then, select the main expense group name from the drop-down list, such as Expenses (Direct/Mfg.) or Expenses (Indirect/Admn.). Click on Save. 
Step 4: Now, when you create an expense master, you can select the account group that you have created and categorize your expense accordingly.
Method 2: In BUSY you can also user Account Category Option, by using this you can create multiple account category and can tag into the expense master and can categorize your expenses.To know how to create Account Category can follow these steps:
Step 1: Open BUSY and select the company you want to work with. Then, go to the Administration tab on the top menu bar and click on Configurations.
Step 2: Select Features / Options and click on Accounts.
Step 3: Here you will find a feaure with named "Maintain Account Category", jusk click on check box to turn it on and can mention caption as needed.
Step 4: Now, when you create an expense master, you can create Account Category and tag into that master and categorize your expense accordingly.