Mandatory procedures and content

Answer:
No. ISO 9001:2015 has no requirement for mandatory procedures.

2. For instance, we have documented that we conduct internal audits as per the audit schedule and notification of Internal Audits shall be given to the relevant parties with defined audit scope, identification of Auditor/s. Apart from this much information documented in our procedure, do we require to document each and every step on how the internal audits are carried out and what will be the timelines to complete corrective actions and etc.?”

Answer:
No. Your organization has all the freedom to define which procedures are needed and what degree of content should they include.

3. My main focus is: do we need to document the steps that we follow to carry out any particular activity such as the activity mentioned in the example mentioned above?

Answer:
No. For example, in many procedures in different organizations, I just use flowcharts ins tead of written text.

The following material will provide you information about documentation:
- ISO 9001 – How to structure quality management system documentation - https://advisera.com/9001academy/knowledgebase/how-to-structure-quality-management-system-documentation/
- Free online ISO 9001:2015 Foundations Course - https://advisera.com/training/iso-9001-foundations-course/
- ISO 9001:2015 Documentation Toolkit - https://advisera.com/9001academy/iso-9001-documentation-toolkit/
- Book - Discover ISO 9001:2015 Through Practical Examples - https://advisera.com/books/discover-iso-9001-2015-through-practical-examples/