Field help (CRIABC) 

Used to define the calculation mode of the ideal ABC classes. If the parameter is set to location, the possible locations for the reassignment are sorted by ABC class order, from the highest to the lowest (with respect to the maximum number of promptings defined in the ABC class table). Products are also sorted by decreasing order of number of promptings. The ideal class for the product with the most promptings will be the ABC class of the first location (highest ABC class). The next product will have the ABC class of the second location, and so on and so forth. If If the parameter is set to ABC class, the ideal ABC class of a product is determined by comparing the number of promptings for this product with the maximum number of promptings defined for each class in the ABC class table.