instructure/canvas-lms · error · ImportError

Invalid date_override_enrollment_type

Error message

Invalid date_override_enrollment_type

What it means

Validation guard in TermImporter::Work#add_term raised when the optional date_override_enrollment_type argument is present but not one of StudentEnrollment, TeacherEnrollment, TaEnrollment, or DesignerEnrollment. The date-override row targets an unsupported enrollment type, so the import refuses to configure the override.

Solutions

1. Use one of the supported enrollment types for the override column
2. Fix the CSV and re-run the batch

When it happens

Trigger: Thrown at lib/sis/term_importer.rb:58 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of instructure/canvas-lms@1c9f0bb801 (2026-09-15). Data as JSON: /api/errors/23fea41bc1d40124. Report an issue: GitHub.

Appendix: source

Thrown at lib/sis/term_importer.rb:58

        @root_account = root_account
        @roll_back_data = []
        @logger = logger
        @success_count = 0
      end

      def add_term(term_id, name, status, start_date = nil, end_date = nil, integration_id = nil, date_override_enrollment_type = nil)
        raise ImportError, "No term_id given for a term" if term_id.blank?
        raise ImportError, "Improper status \"#{status}\" for term #{term_id}" unless /\Aactive|\Adeleted/i.match?(status)
        return if @batch.skip_deletes? && status =~ /deleted/i

        term = @root_account.enrollment_terms.where(sis_source_id: term_id).first_or_initialize
        term.sis_batch_id = @batch.id

        if date_override_enrollment_type
          # only configure the date override if this row is present
          raise ImportError, "Cannot set date override on non-existent term" if term.new_record?
          unless %w[StudentEnrollment TeacherEnrollment TaEnrollment DesignerEnrollment].include?(date_override_enrollment_type)
            raise ImportError, "Invalid date_override_enrollment_type"
          end

          date_override = term.enrollment_dates_overrides.where(enrollment_type: date_override_enrollment_type).order(:id).first
          unless date_override&.stuck_sis_fields&.intersect?(%i[start_at end_at])
            case status
            when /active/i
              date_override ||= term.enrollment_dates_overrides.build(context: @root_account, enrollment_type: date_override_enrollment_type)
              date_override.update!(start_at: start_date, end_at: end_date)
            when /deleted/i
              term.enrollment_dates_overrides.where(enrollment_type: date_override_enrollment_type).destroy_all
            end
          end
        else
          raise ImportError, "No name given for term #{term_id}" if name.blank?

          # only update the name on new records, and ones that haven't been
          # changed since the last sis import
          if term.new_record? || !term.stuck_sis_fields.include?(:name)

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