Has a thunderstorm derailed your hike plans? Or is the museum you planned to visit together actually not open until later in the day? As the activity creator, you can easily edit your activity to change any key details.
Open the activity, tap More in the top right corner, then tap Edit activity.
The edit screen will open. Make your changes, then tap Save.
All participants will be notified automatically that the activity has been updated. However, it’s still a good idea to post a message in the group chat, especially if you’re updating details like time, location, or if the nature of the activity has changed.