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A cluster 'line type' is used as a header to group products in a cluster. Once created, line types are available for selection for all cluster categories. As an example, suppose we sell school-related items and want to create a 'school year' cluster, say a 'stationery and book list' for Year 7s from a particular school. Items for the cluster may include stationery and textbooks etc. To simplify things, let's just focus on one product type - pens. We know that some products will be compulsory, others optional for purchasers. So we can create headers for two line types: 'Compulsory' and 'Optional'. (Note - you can also create a line type that allows customers to choose options from two or more products listed. For instance there may be various brands available for 'black gel pens' but the purchaser needs to buy only one. We will look at this line type later. (See Category Cluster Maintenance below.)
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