Here are some tips for overcoming the business challenges of IaC automation:

• Start small and scale up. Don’t try to automate everything at once. Start by automating a small subset of your infrastructure, such as a development environment. Once you have experience with IaC, you can gradually expand its use to other areas.
• Get buy-in from all stakeholders. It is crucial to get buy-in from all stakeholders, including IT staff, security teams, and business leaders. Explain the benefits of IaC and how it will help the organization achieve its goals. 
• Invest in training and development. Provide your staff with the training and development they need to use IaC effectively. This may include training on specific IaC tools, and on general IaC concepts and best practices.
• Implement security best practices. Make sure to implement security best practices for your IaC code. This includes using secure coding practices, reviewing code before it is deployed, and regularly scanning for vulnerabilities.
• Use a version control system. Use a version control system to track changes to your IaC code. This will make it easier to roll back changes if necessary and to ensure that your code is always in a known good state.
• Test your code thoroughly. Before deploying any IaC code, test it thoroughly in a sandbox environment. This will help identify and fix any errors before they impact your production environment.