Emerging technologies such as blockchain and IoT have found applications in various domains including supply chains. While there are some industry-level uses of blockchain and IoT solutions for improving traceability in food supply chains, there is limited understanding of the factors that contribute to successful implementation and deployment, especially in resource-constrained environments. In this study, we analyzed the factors for the successful deployment of blockchain-IoT solutions/systems for supply chains in resource- constrained environments based on our experience of deploying a blockchain-based trust model using IoT devices for beef supply chain management and analysis of the literature on successful deployment of blockchain-IoT solutions. The findings of our study show that at a higher level, the factors for successful deployment relate to technical, organizational, and data management issues. A detailed discussion of the factors and implementation guidelines is provided to give directions for improving the successful deployment of blockchain-IoT solutions.