The Convert Item option uses the following system control file parameters.
F248:INVCONST Determines if the operator is allowed to use the Convert Item option in the Inventory Management program. If the parameter is set to N, the operator may not use the option. If the parameter is set to Y or it is missing, the operator may use the option.
F248:INVCNVAP. This parameter should be loaded with the autopost number of the GL account that will be used to post any cost difference between the source and destination items being processed. The difference in cost between the two items is posted to the inventory control account for the items (based on the product line the items are assigned to), and to the expense or cost account specified in the parameter.