Why was Candace Cameron absent from the 'Subterranean graduation blues' episode of 'full house'?

Candace Cameron was absent from the "Subterranean Graduation Blues" episode of Full House due to her scheduling conflicts. During that time, she was involved in filming other projects, which led to her character, D.J. Tanner, being written out of that particular episode. This was a common practice in television when actors had overlapping commitments.