All one-to-one commercial negotiations between a specific purchaser and a specific supplier take place within an industrial market and a larger business environment characterised by multiple forces which both parties typically have little control over. STEEPLE framework highlights the 6 main external influences on a business:
Particularly, pharmaceutical industry is a heavily regulated sector, therefore, legal and regulatory matters in the industry is highly important. Otherwise, technological trends also permeate into pharmaceutical companies, technologies like digitalisation may transform the balance of power in such negotiation.
LO 1, AC 1.3

There are 3 major costing methods:
Marginal costing
* Uses marginal cost of producing addition units
* Uses variable cost to derived a unit cost (does not include fixed cost)
* Fixed cost treated as a 'period cost' and deducted, as a total amount, from total contribution to profit for the period, in the firm's profit and loss account Absorption costing
* Calculates total cost of producing product
* In addition to variable cost, a fair proportion of fixed cost is allocated to (absorbed) eachunit of output, as a fixed cost per unit Activity based costing
* Similar to absorption costing but with fixed cost allocated to products on the basis of the cost of activities used in producing them LO 2, AC 2.1

The ZOPA defines the range of outcomes acceptable to both parties, while the walk-away point defines the minimum acceptable deal for the buyer. Together, these guide negotiation planning to avoid unfavourable agreements. Attendee lists and venues are logistical details, important but not central to negotiation value creation. Preparation of ZOPA and walk-away ensures structured, strategic decision-making and protects against poor deals.
Reference: CIPS L4M5 (2nd ed.), LO 2.2 - Planning tools: BATNA, ZOPA, walk-away points.

Buying organisation may increase its leverage with suppliers by concentrating spend. Supplier spend consolidation can take many forms as outlined below:
- Vendor base reduction: straightforward reduction of number of suppliers in any category
- Volume pooling: pooling cross organisational requirement until your order volume is high enough to attract new bidders/additional discounts
- Volume redistribution: making recommendations following spend analysis to move from one supplier to another
- Volume consolidation across categories: certain purchase requirements may be common across a number of categories. In the scenario, XYZ has combined different categories but closely related to office services into a larger contract so that they can increase their leverage.
- Standardisation and harmonisation of specifications: analysis of specifications and standards for a high spend purchased input, may show that there is a little difference between them and that the specification can be standardised or at least harmonised across the group or across national, regional or global operations.
- Forming purchasing consortia: buyers may decide to come together and combine their purchase volumes to attract better deals.
LO 1, AC 1.3

Microeconomic factors concern the conditions specific to suppliers, buyers, and markets - such as supplier communications, annual reports, and industry-specific data. These provide insight into cost structures, capacity, and competitive positioning. Macroeconomic factors, by contrast, include inflation indices (RPI), financial market trends, or global commodity prices. Distinguishing between micro and macro sources allows negotiators to build more precise intelligence for supplier discussions.
Reference: CIPS L4M5 (2nd ed.), LO 1.2 - Micro vs macroeconomic factors in negotiation preparation.