What happens when I save my sequence?

When you click Save, the builder automatically validates your sequence before saving. The validator checks for:

• Unreachable courses — courses that no learner can ever reach because their prerequisites are impossible to meet
• Circular dependencies — courses that require each other, creating a loop (e.g. Course A requires Course B, which requires Course A)
• Missing prerequisites — courses in later stages with no connection to earlier stages

If validation fails, you will see a clear error message describing the issue. Fix the flagged problems and save again. Your sequence will not be saved until all issues are resolved.