You are allowed to add or change mnemonics (letter-equivalents for major class code numbers) for existing major class codes from the Enter/Edit Major Class Codes screen. However, if you do that, the inventory files and sales files will not reflect the changes. After you make any changes, use this option to update those other files. If you expect to make changes to mnemonics, it would be a good idea to make a number of changes at one sitting, then you can update the all the changes in the other files at one time, by using this option. Type the word UPDATE below to start the updating.
This may take a while. Type UPDATE to continue.