First, let's get familiar with the different statuses a task can have.
Before a task is marked Completed, it first gets labeled as Not started and passes through In progress. Additionally, the SciNote premium plans with e-signatures also offer two more statuses - In review and Done. The task status flow is depicted in the figure below.
When inside a task, the task status is displayed in its upper-right corner, as shown in the picture below.
If you are browsing through the tasks within an experiment, you will be able to see a task's status on the task card, as shown below.
Now that we are familiar with the task status workflow, let's take a look at how to move a task between them. You have to move a task in this order (or vice versa): Not started, In progress, Completed, In review, Done. Please look at a picture below which shows how a task flows through the statuses.
When a task is marked In review, the task automatically gets locked (i.e. while in this status, no editing of the task is possible). At least one e-signature (several people can then co-sign a task if necessary) is required for a task to be moved from In review to Done. You can read more on how to sign a task here.
If you'd like for a task to go from In review back to Completed, the e-signatures need to be revoked. Mor on revoking signatures can be found here.