You can use the Notes column in Project Task Gantt for status updates and communication between the project manager and resources.
To view or edit notes on a task in Project Task Gantt:
Related Concepts
Project Task Gantt (Task Manager)
About Task Dependency Relationships and Lag
Related Tasks
Adding a Task Dependency Relationship
Deleting a Task Dependency Relationship
Editing a Task Dependency Relationship
Assigning Resources or Roles to a Project Task
Creating Resource Demands from Project Task Gantt
Associating Project Tasks with Milestones
Configuring Alerts and Restricted Editing of Project Task Constraints
Reference