Does NOT plan increase the length of that sprint as it is a time-box the team agreed to respect and commit to. retrospectives for continuous improvement.
Push unfinished work to the next sprint to be re-prioritized against future backlog items.
Understanding that unfinished work within this timebox is usually a symptom of other issues, such as, change in scope, reduced capacity after sprint planning, poor estimation, etc. and the SM plans to help the team reflect and surface the issue and address them as part of their retrospective
