Hi everyone, I would like to know if there is a way to update subtasks’ due date automatically based on the change on item due date.
For example, the due date for the main task (item) is February 14th but changing it to 16th. Then I would like to automatically update subtasks’ due date by 2 days.
Thanks in advance!
Hey @yfs10 ~ Welcome to the Community! 
It’s not currently possible for subitems to be dependent on item dates – they can only be dependent on other subitems.
Check out this article for more details on dependencies in general: How to Set Dependencies on monday.com
We also have a helpful article in case you’re running into any loop issues: Dependency loops and how to avoid them
Otherwise, if you are comfortable coding or have access to any developers, you can build your own automation using our API that might be able to achieve this:
If you need additional support on our APIs or apps platform, I would recommend doing a search for your question in our developer community here. You can also post to the community to get help from other monday.com developers.
If you need help building custom integrations, we also have an option for paid assistance through our network of certified monday.com partners. If this interests you, simply fill out this form and someone will be in touch shortly!
I hope this helps! 
Cheers,
Jenna
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