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Perplexity and Exact Online: answers with the reasoning

Last updated: July 25, 2026
TL;DR Strong when you have to justify an answer. Less suited if you mainly want to perform actions in Exact Online.

Setup is covered on the Perplexity page. This post is about where Perplexity stands out - and whether that matches what you want from your administration.

Where does Perplexity stand out?

Perplexity is built to search and to substantiate. Where other assistants give an answer, Perplexity gives an answer with the path to it. For administrative questions that means you see where a figure came from.

That is useful when you have to be able to justify an answer. Ask why a customer is behind on payment and you want not just the amount but which invoices make it up.

What it is good for

  • "Which customers have invoices outstanding over 60 days, and which invoices are they?" — the second half of that question is where Perplexity is strong.
  • "Which items sold most this quarter, and in which orders?" — the substantiated answer saves you a follow-up question.
  • "Is it right that revenue was lower in June? Show what you base that on." — explicitly asking for the basis works well here.

What you will run into

The emphasis is on reading. Perplexity is at heart a search and research assistant. If you mainly want to perform actions - create orders, book receipts - ChatGPT or Claude are more practical.

External sources and your administration can blend. Perplexity also pulls information from the web by default. Be explicit that you want an answer from your own administration, or you sometimes get general information mixed in.

Check the amounts. That holds for every assistant, but with a substantiated answer the temptation to take it at face value is stronger.

Where to go next

Browse the prompt library for worked questions. To understand how the integration treats your data, read the security page.

Why substantiation matters in bookkeeping

With a question about your books, the answer is rarely the end point. Someone asks why revenue was lower in June, and the real work starts with the follow-up: where exactly does that difference sit? An assistant that only gives the number leaves you there.

Perplexity supplies the path to the answer by default. For administrative questions that means: which invoices, which orders, which period. In practice that saves a second and third question, and it makes checking easier - you see straight away whether there is an entry in there that does not belong.

Three moments where that makes the difference

  • Before a conversation with your accountant. You want to know not just that a position is off, but which entries make it up.
  • On a payment reminder. A customer calls back about the amount. With the underlying invoices to hand, that is a short call.
  • On a figure you did not expect. If stock value has suddenly dropped, you want the movements before you draw conclusions.

How to get the substantiation out

Ask for it explicitly. "Which customers are behind?" gives a list. "Which customers are behind, and which invoices per customer?" gives the list plus the basis. That costs you half a sentence and saves a follow-up.

If the answer is not what you expected, add the period and the administration. The more concrete the question, the less room for interpretation.

FW
Frank Woutersen is the founder of Ledger Botje and writes about AI, MCP and Exact Online. He helps businesses manage their administration smarter with AI assistants.

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