If the Forecast Hours do not exceed Minimum Required or Planned in ILR, the learner will show as “Insufficient Hours Planned”.
Forecast Hours is Completed OTJ (from accepted evidence in completed components) plus Future Planned OTJ (totalled from Planned Hours in incomplete components).
When learners are first applied to a programme, their Forecast Hours are solely Future Planned OTJ.
As components are completed, those component Planned Hours are no longer "future" and the OTJ hours from the accepted evidence in those components are instead used in the calculation for Forecast Hours.
Therefore, if you are not recording OTJ in some/all accepted evidence, this would lead to Forecast Hours decreasing and the learner eventually being displayed as "Insufficient Hours Planned" during the course of their learning episode.