@jgarciac
For multi-choice fields, you have to use a Select action to parse the multi-choice selection from the Get Item action.
In the from field, insert the dynamic content of the multi-choice column. Important: Ensure you are selecting the multi-choice column — not the multi-choice column value dynamic content.
In the key field, enter Value with a capital V. In the value field, insert the multi-choice value dynamic content.

In the Create Item action, select the icon to switch the input mode.

Insert the output from the Select action.

If you are looking for a way to send multiple SharePoint List items that have been assigned to a user in an email—check out this YT Tutorial: How to Send a SINGLE EMAIL ✉️ with multiple SharePoint list items | Build THIS Power Automate Flow
IN THIS VIDEO:
✅ How to send multiple list items in a single email with a Power Automate Flow
✅ How to create a dynamic date range
✅ How to use the Convert Time Zone action
✅ How to use a Filter Query in the Get Items action
✅ How to count number of items in an array
✅ How to use the Select action to extract a users display name and email address
✅ How to create a unique list of email addresses
✅ How to use the Create HTML Table action
✅ How to customize the HTML Table with CSS styles
✅ How to use the Send an email (V2) action
✅ How to use the Append to String Variable action
✅ How to create a custom list of items for an email
✅ How to use the Send an email (V2) action
✅ How to display singular or plural text based on the number of items returned
Hope this helps!
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