Summary

I would like to have the Start and End dates updated in Advanced Roadmaps according to the Sprint dates.

Environment

Jira Software- Advanced Roadmaps

Solution

How to schedule issues according to sprint

You can schedule issues based on the sprint to which it’s assigned.
To infer dates from sprints in your plan:
# From the Roadmap view, navigate to settings using the next to your plan name > Configure.
# In the Scheduling tab under the Inferred dates section, choose which dates you’d like Advanced Roadmaps to auto-populate when issues don’t have start and end dates.
# Choose from:

* None
* Sprint dates
* Release dates

Please take a look at the doc here to know more regarding this Configure according to sprint date 

You can use Start/End date, Target start/End Date to schedule issues from your timeline. You can choose your own date fields to visualize your issues in the roadmap.
* From the Roadmap view, navigate to settings, plan name > Configure.
* In the Scheduling tab under the Dates section, use the drop down menus to select what to use as the start and end dates of your issues.

Please have a look at the below doc for more information regarding this.

Date fields available in Advanced Roadmaps