Under Configure tab > Scoring, you can set the mastery score. Learners have to reach the minimum passing score to complete the course successfully.

The overall score is calculated by adding the score reached for each scorable content/ question page in the course and dividing it by the total number of scorable content/ question pages in the course.

For example, let's imagine that the mastery score for the overall course is 80%. Even if a learner gets less than 80% for any section(s), but reaches 80% or more in total, the course will be passed successfully.

To successfully pass the course, learners have to achieve a mastery score for each section. For example, let's imagine that the mastery score per section is 80%. If a learner gets less than 80% for at least one section, the course will be failed. 

Note: If you didn't use the section structure in the course and the pages are added directly to the course layout, each scorable content/question in the course should be answered correctly despite the given mastery score. In the case of a no-sections structure, each page counts as a section.

That's why it is recommended to use the overall course option with a no-sections course structure.