In Salesforce Industries (formerly Vlocity) environments---especially relevant for Telecom, Media, and Energy---scenarios involving runtime price changes, agent-driven adjustments, and approval workflows are handled through Discounts, not Promotions or Context Rules. Discounts are specifically designed to allow flexible, rule-driven, and approval-controlled adjustments across the catalog, making them ideal when a company wants to equip call-center or retention agents with the ability to negotiate offers with outgoing customers.

Salesforce's public guidance explains that Discounts support both manual and automated application methods. Administrators can enable runtime/manual discounts, specify discount types (percentage or fixed amount), and attach approval rules via the Industries Pricing Compliance framework. These can be targeted across the entire product catalog, specific product hierarchies, or only selected offers. This aligns perfectly with ABC Telecom's requirement to apply pricing adjustments across the catalog and allow agents to make on-the-spot price changes.

While Promotions are useful for predefined marketing offers, they do not support agent-driven runtime flexibility. Context Rules automate pricing logic but do not provide agent-level manual control. CPQ Hooks require custom development and are not intended for business-driven discounting workflows.

Therefore, Discounts are the recommended and Salesforce-aligned feature for agent-controlled runtime adjustments, catalog-wide applicability, and approval process integration, exactly matching the needs of a telecom retention team.