After the achieve by date of a objective has passed, close the OKR to collect feedback and celebrate or reflect in preparation for the next OKR-setting period.
Click the three dots icon (kebab menu) at the end of the row in list view (or at the top right of the objective popup) and select Close objective. You will be prompted to indicate whether or not the objective was achieved, and give it a rating out of 5 stars. You can also leave a narrative of how you thought you did, what could have gone better or which obstacles you encountered. Select teammates to prompt them to leave their own narratives.
You can view closed goals by filtering the list on the Heatmap page, or by clicking the three dots icon (kebab menu) at the top right of the My OKRs page and selecting to view your closed objectives.