Value 1 is default course role, 2 is legacy Teacher role and 3 is legacy Non-editing Teacher. You can use role field instead
to specify roles directly - use either role short name or id (numeric names of roles are not supported). Users may be also
assigned to groups in course (group1 in course1, group2 in course2, etc.). Groups are again identified by its names or ids
- (numeric names of groups are not supported). You can also set the enrolment duration in days for each course (enrolperiod1 for course1, enrolperiod2 for course 2).</p>
+ (numeric names of groups are not supported). You can also set the enrolment duration in days for each course (enrolperiod1 for course1, enrolperiod2 for course 2, etc.).</p>
<p><code>course1, type1, role1, group1, enrolperiod1, course2, type2, role2, group2, enrolperiod2, etc.</code></p>
</blockquote>
</li>