Use AI to update string node variables using user input node

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Posted on by CU28050913-0

Hi there,

I have create a work intake request agent in M365 chat, the agnet will take brain dump from the users then using AI it will :

Generate suitable request title
Summarise the brain dump into request description
[if provide by the user in the brain dump] extract request due date (even if the user uses friendly language such as first Monday of June) and format it into DD/MM/YYYY
Using information I have provided about the different teams, the agent will automatically decide what request support teams needed for the request
Only ask the user questions related to these info if it wasn't included in the initial brain dump info provided
Other information will be either extracted from the brain dump user input or an educated decisions such as request audience, request deliverables, etc.
Show the user a summary message of all the info captured and ask them if they want anything changed.
Finally, show a final summary message of the request for the users.

It was straight forward to set up the agent, however, the information captured can not be passed to other platform such as Planner and SharePoint list, my question that I would appreciate your support with, is it possible to build a Copilot agent that can use AI to populate nodes with variable (without asking the users) so then these variables can be mapped to a Planner and SharePoint list as well as sending email to the person who submitted the request.

Thanks in advance for your support on this.

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Copilot Studio skills development

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Nivedipa-MSFT Microsoft Employee on at

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Hello CU28050913-0,
Yes — but build it in Copilot Studio, not the M365 Chat agent builder.
Here’s the flow:

Capture the brain dump and store it in a variable.

Use an AI Builder Prompt action with a JSON schema output to auto-extract Title, Description, DueDate, SupportTeams, Audience, and Deliverables into typed variables, with no user questions.

Add Conditional Question nodes so you only ask when a variable is empty.

Format the date with Power Fx: Text(DateValue(Topic.DueDateIso), "dd/mm/yyyy").

Call Power Automate flows to:

Create Planner task

Create SharePoint list item

Send Outlook email to System.User.Email

Send confirmation and final summary messages.

The main unlock is the AI Builder Prompt node with structured JSON output — that’s what converts AI text into mappable variables your declarative M365 agent can’t produce.

If you found the information above helpful, I would appreciate it if you could share your feedback.
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Romain The Low-Code... 2,855 Super User 2026 Season 1 on at

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hello

to answer each question :

"s it possible to build a Copilot agent that can use AI to populate nodes with variable (without asking the users)" -> : In the topic top bar, just clic on top little button like ... you will have "input" : put name, description, sample, data type : it will ue the orchestrator native slot filling to put data in it and automatic ask question to the user, based on the description, if data is missing.

" so then these variables can be mapped to a Planner and SharePoint list as well as sending email to the person who submitted the request" : You need to use the tab "tool" or for complexe case "power automate" and insert it as tool in node

if you want more information about input, variable or using tool with copilot studio, i strongly recommand to folow this public training path :) :https://microsoft.github.io/agent-academy/

I hope it help you :)

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