Copilot Chat Gave You Citations. Check What They Were Grounded In

A Copilot Chat answer that arrives with citations feels finished. It is not. A citation tells you where a sentence came from. It does not tell you that the sentence says the same thing as the source, that the source is current, or that the answer used the data you expected it to use.

Reader and decision: You are an operations manager who asked Copilot Chat a question about a live decision, and you now have an answer with sources attached. The artifact below is a citation check table. The decision is whether you can forward that answer, or whether it needs correction first.

Evidence label: Documentation-based and illustrative. Microsoft documents grounding in Copilot Chat, the citation behaviour, and the permission model. The documents, email, prompt, and answer below are fictional. No Copilot session or personal test is claimed.

What you need

Copilot Chat in the Microsoft 365 Copilot app, with a licence or account type that includes work grounding. Microsoft states that availability varies by licence, subscription, and admin settings, and that an administrator can turn some features off.
The Work IQ control at the top left of the Chat screen. With Work IQ on, Copilot can reference work data. With it off, Copilot answers using content you attach, public web information, and your personalisation preferences.
Access to the sources it cites. Copilot follows your existing permissions, so you should only receive references to content you can already open.

If you cannot open a citation, that is a finding. Stop and ask about permissions instead of assuming the source says what the answer claims.

Create the fictional input

Imagine your team is closing a supplier renewal and you asked:

Summarise the decision on the Northwind renewal, including who approved
the weekend coverage add-on and the total annual value.

The illustrative answer you receive is:

Northwind renewal summary

1. Finance approved the renewal on 3 November.
   Source: Renewal notes.docx

2. Maya approved the weekend coverage add-on on 31 October.
   Source: Email from Maya Tan, 31 October

3. The total annual value is $18,000.

Three sentences, two citations, one number with no source. This is the shape of answer that gets forwarded by mistake.

The citation check

Paste this prompt after the answer:

Convert your previous answer into a citation check table with one row per claim.

Columns: claim, cited source, source type (work file, email, meeting, web), quoted line from that source, verdict.

Verdicts:
- SUPPORTED: the cited source states the same thing.
- OVERSTATED: the source says something weaker, or assigns a different role or person.
- UNCITED: no source is given.
- NOT FOUND: the cited source cannot be opened or does not contain the claim.

Rules:
- Quote the source line exactly. Do not paraphrase the quote.
- If you cannot show a quoted line, mark the claim NOT FOUND.
- Do not reword a claim to make it match a source.
- Do not add new claims in this table.

Then open each source yourself. The illustrative result is:

| claim                                | cited source                | type | quoted line                                   | verdict    |
|--------------------------------------|-----------------------------|------|-----------------------------------------------|------------|
| Finance approved the renewal 3 Nov    | Renewal notes.docx          | file | "Approved by Finance, 3 November."            | SUPPORTED  |
| Maya approved the weekend add-on      | Email from Maya Tan, 31 Oct | mail | "I'd recommend we add weekend coverage."      | OVERSTATED |
| Total annual value is $18,000         | none                        | none | none                                          | UNCITED    |

Two of three claims fail the check, and neither failure is visible in the original answer. “Recommend” became “approved”, which changes who owns the decision. The value has no source at all.

The corrected version, after a person checks the finance sheet and asks the owner, might read:

Renewal approved by Finance on 3 November (Renewal notes.docx).
Weekend coverage was recommended by Maya on 31 October; approval not recorded.
Annual value needs confirmation from the finance sheet before use.

Acceptance checks

The check passes when:

every sentence in the answer has its own row, including sentences with no citation;
every quoted line can be found word for word in the named source;
a recommendation is never relabelled as an approval;
numbers and dates either cite a source or are marked UNCITED;
the Work IQ state is recorded next to the table, because it changes what the answer could see; and
anything still unclear stays NOT FOUND or UNKNOWN rather than being smoothed over.

Troubleshooting

The answer becomes general when you ask a follow-up. With Work IQ off, Copilot answers from attached content, web information, and your preferences, so your internal documents are not available. Turn Work IQ on, or attach the specific file and say “use this file only”.

The cited file cannot be opened. Copilot respects existing permissions. A citation you cannot open is worth reporting, not guessing about. Ask the file owner whether you should have access.

The quote in the table does not exist in the source. Treat the whole row as NOT FOUND. Ask for the exact line again, and if it still cannot be produced, remove the claim.

The same answer keeps mixing web and work sources. Ask for the source type column on every row. A web citation about a generic industry practice is not evidence about your renewal.

Limits and decision

Microsoft describes grounding as the step that connects a response to real information and produces citations you can check, and it recommends reviewing those sources and confirming critical details before sharing or acting. That is the boundary of this workflow. The table tells you where to look. It does not confirm that a document is accurate, current, or approved, and it does not replace the decision owner.

The habit that matters is small: treat a citation as an address, not as a signature. Open it, read the line, and compare the wording with the claim. For a related check on recording what each step actually produced, see the work claim ledger.

TRY this on a fictional renewal or one low-risk real question. SKIP it for anything involving commitments, prices, or approvals until a human owner has confirmed the figures. USE the citation table as the gate before an answer leaves your screen.

For more practical AI workflows built around real work tasks, join The Weekly Verdict.

Sources

Evidence label: Documentation-based and illustrative. The documents, email, answer, quotes, and verdicts are fictional teaching material. No Copilot execution, customer data, permission test, or Cihan test is claimed.