Vacation conversion to HSA

Summary:

Hi,

We have a requirement where employee should be able to convert next years vacation eg: 10 days and put the dollar amount to Health spending account.

Does anyone have any inputs on how i can achieve this?

Thanks,

N

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):