ISO 9001 Ho to write quality manual

ISO 9001:2015 does not mention the existence of a quality manual. Please check this article about mandatory documentation - List of mandatory documents required by ISO 9001:2015 - https://advisera.com/9001academy/knowledgebase/list-of-mandatory-documents-required-by-iso-90012015/

So, it is not mandatory to have a quality manual, neither is forbidden to have one. I recommend organizations to have a quality manual, but it is just a recommendation. You can find a suggestion for the quality manual content in this article - The future of the Quality Manual in ISO 9001:2015 - https://advisera.com/9001academy/knowledgebase/the-future-of-the-quality-manual-in-iso-90012015/

The following material will provide you information about the quality manual:

• Free online training ISO 9001:2015 ISO 9001:2015 Internal Auditor Course - https://advisera.com/training/iso-9001-internal-auditor-course/
• Book - Discover ISO 9001:2015 Through Practical Examples - https://advisera.com/books/discover-iso-9001-2015-through-practical-examples/