To prioritize effectively, start by assessing the urgency and impact of each pending task. Identify tasks that directly impact critical business processes, customer satisfaction, or revenue generation. Prioritize these tasks as high-priority and address them promptly. Also, consider any contractual obligations, deadlines, or service-level agreements with vendors.

Next, evaluate tasks that have a moderate impact but may not be as time-sensitive. Finally, review tasks with lower impact or those that can be deferred without significant consequences. By prioritizing based on urgency, impact, and contractual obligations, vendor managers can allocate resources efficiently and focus on tasks that provide the greatest value and address critical needs first.