JDA Demand Planning is a popular supply chain and inventory management software solution that helps businesses forecast demand, optimize inventory levels, and improve overall supply chain efficiency. However, my information might be outdated, and there might be newer versions or different platforms available now.

For training on JDA Demand Planning or any software for that matter, you generally have a few options:

1. **Official JDA Training**: Check the official website of JDA (now Blue Yonder) or their parent company for JDA Demand Planning training resources, courses, and certifications. They might offer online courses, webinars, or in-person training sessions.

2. **Third-Party Training Providers**: There are often third-party training providers or consulting firms that offer courses on JDA Demand Planning. You can search online for such providers and see if they have suitable training programs.

3. **Online Learning Platforms**: Websites like Udemy, Coursera, LinkedIn Learning, or Pluralsight sometimes offer courses on supply chain management software like JDA Demand Planning. Check if any relevant courses are available there.

4. **Vendor Support and Documentation**: The software vendor typically provides documentation and user guides for their products. Check if there are any official guides or manuals available to learn from.

5. **Community Forums and User Groups**: Sometimes, user communities or forums related to JDA Demand Planning might have tutorials, tips, and tricks shared by experienced users. Participate in these communities to learn from others' experiences.

6. **On-the-Job Training**: If your company uses JDA Demand Planning, they might have internal training or resources to help employees learn to use the software effectively.

Always ensure that the training you choose is relevant to the version of the software you are using, as different versions might have variations in features and functionalities. If possible, try to get hands-on experience with the software to reinforce your learning.

Since it's currently 2023, there might be new updates, versions, or alternative software available. Be sure to check the latest resources and reviews to make informed decisions about your training options.