The Supplier Preferencing Model is used by suppliers to segment their customers based on two key dimensions: the value of the business (current spend/profitability) and the attractiveness of the account (potential for growth, strategic alignment, ease of business). RoostyFace spends very little, which places it low on the 'value of business' axis. Furthermore, it is unlikely to increase its spend, placing it low on the 'attractiveness of the account' axis. A customer that is both low in value and low in attractiveness falls into the 'Nuisance' quadrant. The supplier's strategy for such customers is to minimize the cost to serve or potentially cease the relationship.

A. Core: Core customers are highly attractive and provide high value. RoostyFace offers low value and low attractiveness.

B. Annoying: This is not a recognized category within the formal Supplier Preferencing Model framework.

C. Exploitative: Exploitative (or Exploitable) customers provide high value but are considered low in attractiveness. RoostyFace provides low value.

1. Baily, P., Farmer, D., Crocker, B., Jessop, D., & Jones, D. (2015). Procurement, principles & management (11th ed.). Pearson Education. In Chapter 4, "Sourcing," the model is detailed, explaining that customers with low account attractiveness and low relative value are classified as 'Nuisance' (see Figure 4.7, The supplier's customer portfolio matrix).

2. Cox, A. (2004). The art of the possible: relationship management in power regimes and a new logic of procurement. In Supply Chain Management: A Research Agenda (pp. 59-82). Springer, Boston, MA. This work discusses the power dynamics and segmentation logic that underpins models like supplier preferencing, where low-value, low-attractiveness accounts are managed for minimal effort.

3. University of Twente. (n.d.). Purchasing and Supply Management Courseware. The Supplier Preferencing model is presented as a tool for suppliers to classify their customers. The 'Nuisance' quadrant is consistently defined as containing customers who offer low value and low attraction, warranting minimal resource allocation from the supplier.