defines whether tasks should inherit the constraint type from their parent project
The property has been deprecated in v9.1, use the project_constraint property of auto_scheduling instead.
Available only in PRO Edition
gantt.config.auto_scheduling_project_constraint = true;
This functionality is available in the PRO edition only.
This config is defined in the auto_scheduling extension, so you need to activate the auto_scheduling plugin. Read the details in the Auto Scheduling article.
By default, the constraint type of the parent project doesn't affect the constraint type of its nested tasks.
If you set the config to true, the child tasks (except for tasks with their own constraint type) will have the same constraint type as their parent project (for example, finish no later than).