Presenting competing offers can create leverage in negotiations. Inform the vendor that similar functionalities are offered by competitors at a substantially lower quote. This could include specific pricing details from those competitors and emphasizes the need to align the current offer with market standards to proceed.

Request the removal of any auto-renewal clauses in the contract to enhance negotiation leverage during the next cycle. By involving your finance/legal team, you can explain that removals are a crucial requirement before finalizing any terms.

Discussing the requirement for economies of scale in pricing is critical especially when planning to increase usage significantly. If you will add more users during the contract term, anchor your negotiation on achieving lower rates per user as a reward for extending the contract scope.

Offer to act as a reference or participate in a case study contingent upon achieving agreeable commercial terms. This creates an incentive for the vendor to provide better pricing or terms in return for your marketing participation.

Negotiate to remove any surprising uplift associated with the renewal while emphasizing your budget constraints. If you've seen stable or decreased usage, arguing against unexpected cost increases can yield significant savings.