Sales and client management

From Won Deal to Client Project Without Losing Anything

M

Michael Wiersma

Founder of Evertising and Wecooking

21 July 2026

5 min read

Good project management software for agencies does more than track tasks: it captures the handover from sales to delivery, so promises, scope and deadlines don't disappear the moment a deal is signed. That handover moment is, after all, the riskiest part of the client relationship, and most agencies have nothing in place for it.

Ask an agency, or a freelancer with multiple clients, where client relationships break down and you'll hear stories about poor results or difficult clients. My observation is different: most of the damage happens in the week after the signature. The deal is closed, everyone's happy, and at exactly that moment the client changes hands. From the person who knows everything to a team that knows nothing yet. That handover moment is the riskiest part of the entire client relationship, and most agencies have nothing in place for it.

Why is this moment so fragile?

Two things collide here. On one side, the client just signed and expects momentum. The first weeks determine whether the feeling from the pitch holds up. On the other side, nearly all the knowledge about this client sits, at that moment, in one head: the person who ran the sales process. What exactly was promised, why the client is actually switching, what sensitivities are in play, who decides internally.

If the handover is sloppy, the client notices immediately. They have to repeat things they've already said twice. Something gets delivered that's slightly off from what was discussed. And the annoying part: the client doesn't conclude that the handover was sloppy. The client concludes that the agency is sloppy.

What gets stuck in heads and inboxes

Add up everything that gets agreed during a sales process and where it ends up:

  • Promises. "We'll fit that into the first quarter" or "we'll throw in that extra landing page." Said in conversation, written down nowhere.
  • Scope. What's included in the price and what isn't. The core usually sits in the proposal, but the nuances live in three email threads around it.
  • Deadlines. The client has a campaign, a trade show, or a launch. That date was mentioned in the second conversation and never written down again.
  • Contacts. Signed by the director, but day-to-day coordination runs through someone else. Who can decide and who just gets a say?
  • Context. Why the client left the previous agency, what they're sensitive about, what won them over.

Say Koos ran the sales process and Sjef picks up the project. Everything on that list that only lives in Koos's head or inbox simply doesn't exist for Sjef. So Sjef starts emailing Truus from the client, misses half the context, and Truus wonders why she has to explain everything again. Nothing gets lost out of unwillingness, but because of where the information was stored. If you work alone, the same thing happens: you from three weeks ago knows things that you today, busy with another client, has already forgotten.

At Evertising, I experienced this firsthand. A won deal had to be manually moved to another tool, and in that transfer, details mentioned during the sales conversation regularly got lost. Not because anyone was careless, but because the systems simply didn't connect.

Handover is a system, not a conversation

Many agencies solve this with a handover meeting: half an hour with sales and delivery. Better than nothing, but a conversation isn't a safeguard. Whatever doesn't come up in that half hour is still gone. You safeguard it with a fixed way of working:

  • Record agreements the moment you make them. Don't reconstruct afterward, add notes to the deal during the sales process. Every promise, every date mentioned, every name.
  • Make the proposal the source of scope. Everything committed to is in it or gets added before the signature. "We discussed that, didn't we" is not scope.
  • Work with a fixed handover checklist. Promises, scope, deadlines, contacts, context. Only once all five are filled in is the handover complete.
  • Put the client in the same system. If the client can follow the project, they can check for themselves whether their expectations match what's written down. Differences surface in week one, not at delivery.
  • One place for everything. If sales sits in one system and delivery in another, every handover is a copy action, and every copy action is a chance to lose something. I wrote about why those two worlds belong in one environment in combining CRM and project management.

This sounds like extra work, but it's the opposite. Every minute you record during the sales process saves an email, a misunderstanding, or a fix-it round in the project. Especially if you're running multiple clients at once, which I wrote about earlier in managing multiple clients overview.

How we built this in

When we built Wecooking, this handover moment was one of the first things we wanted to solve. You record notes and follow-up moments on the deal during the sales process. Mark the deal as won, and one action turns it into a client with a project, and everything that was on the deal comes along. No retyping, no reconstructing from inboxes. The client gets access to a portal where they follow along, respond, and approve, so expectations and reality sit side by side from day one.

Recognize this handover problem in your own agency, or as a freelancer running multiple clients at once? Try Wecooking for free. During the beta it's free, and you'll notice the difference right away on your next won deal.

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