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Working with others

Two people working on the same file

When two colleagues chase the same supplier, the supplier looks bad and you lose the time.

Updated on 13/08/2026

It happens in any team of more than two: two colleagues work the same matter without knowing, and the third party — the supplier, the client — gets two similar requests, answers one, and is left with the impression that you do not talk to each other in there.

How it shows up

SymptomWhat is happening
The supplier says "I already sent it to your colleague"Two requests, one answer, and the other still open
Two reminders arrive about the same thingNobody closed the request on receipt
Two people approve the same thing differentlyIt was not clear who decided
Someone redoes work already doneThe result existed, but somewhere else

Important

The first row is the commonest and has an invisible consequence: **the supplier is right and you are still waiting**. They sent what was asked, to whoever asked; what failed is that the delivery did not close the other request. And when you chase, the relationship suffers over something they did not do wrong.

What prevents it, and it is not a meeting

  1. 1

    One owner per file, by name

    Others help, one answers. Without that, everything else is a patch.

  2. 2

    Request from the file, not from email

    It is what makes visible that a request is already open on that.

  3. 3

    Close the request on receipt, not at day's end

    An open request with the document already in is what fires the second reminder.

  4. 4

    And look at the file before writing

    Ten seconds that prevent the whole conversation.

Watch out

What annoys the third party most is not receiving two requests: it is receiving the second **after having answered the first**. To them it means you did not read them. If you spot that it happened, say so before they do — one line acknowledging it costs less than the distrust it otherwise leaves.

When two people must work at once

The second solves nearly everything: if the third party always hears from the same sender and replies to the same place, how many of you are behind it does not matter to them.

Worth knowing

The log says who requested what and when, so these situations are clarified by looking rather than reconstructing from memory. What it does not fix is the impression the third party took away, which is why heading them off early matters.

What if two of us handle it deliberately?

Then one is the owner and the other supports: two owners is none.

Do two requests count as two actions?

Yes: every send counts, even the same document to the same person.

Can I see whether a request is already open?

Yes, in the file itself: that is exactly what prevents the duplicate.

A real case

The situation

A supplier receives two requests for the same certificate in one week.

What you do

  1. They assign an owner per file and close requests on receipt

What you get

Crossed reminders stop and the supplier stops replying "I already sent it".

The situation

Two people work the same file and both write to the supplier on the same Tuesday.

What you do

  1. Assigns an owner to the file
  2. Checks who handles it before writing
  3. Leaves notes in the file rather than in each inbox

What you get

The supplier receives one message and the team does not duplicate work.

The situation

One approves a document and the other rejects it the same day.

What you do

  1. Writes the criteria into the template

What you get

The decision is the same whoever takes it.

The situation

Each keeps their notes in their own inbox.

What you do

  1. Records notes in the file

What you get

The context is shared.

The situation

One goes on holiday and the other does not know where things stood.

What you do

  1. Checks the file's history

What you get

The handover does not depend on a conversation.

The situation

Both chase the supplier with different deadlines.

What you do

  1. Sets the deadline in the file itself

What you get

The supplier receives one date.

The situation

Nobody knows who did what in the file.

What you do

  1. Checks the log with author and date

What you get

Every action has an owner.

The situation

The file moves on and the other finds out late.

What you do

  1. Sets change notifications for both

What you get

Both work on the same thing.

This article answers

  • two people request the same thing from a supplier
  • colleagues duplicating work
  • who owns this file
  • avoiding duplicate requests in the team