Vendor contingency is not a one-time or static process, but a continuous and dynamic one that requires regular monitoring, review, and updating. As suppliers, customers, and markets may change over time, it's important to learn from experiences and apply the lessons and best practices to future vendor contingency actions. To improve vendor contingency, you can use tools such as vendor performance evaluation, vendor relationship management, and vendor development. Vendor performance evaluation involves measuring how well suppliers meet expectations, requirements, and standards using indicators such as quality, delivery, cost, or service. You can also use feedback, ratings, or reviews to collect and analyze data. Vendor relationship management is a process of building and maintaining strong relationships with suppliers through communication, collaboration, negotiation, or innovation. You can also use contracts, agreements, or policies to formalize and regulate your vendor relationships. Finally, vendor development involves helping suppliers improve their capabilities by providing training, mentoring, coaching, or consulting. You can also use awards, certifications, or referrals to recognize and promote your vendors.