No. You may use any template that suits your production’s specific needs, combine templates, or create your own.
If you would like examples of pre-existing templates, you can find CBC’s here https://drive.google.com/file/d/1kFUBNTdSXIvFcSeRMlIYS5exhqD6kgdC/view, CMF’s here https://cmf-fmc.ca/document/sustainability-plan/ and Telefilm’s here https://telefilm.ca/wp-content/uploads/2023/05/Project-Financing-Sustainability-Plan-Template-May-2023-EN-Examples.pdf.