5 Common Mistakes New Project & Account Managers Make (And How To Avoid Them)

In this article, I outline the key mistakes new managers make—and how you can sidestep them.

If you're new to project and account management in an agency, there are some common mistakes that can seriously hold you back.

I’ve worked with dozens of new interns, project exec's and even job switchers, and I see these pitfalls over and over. But here’s the good news: you can avoid them if you know what to look out for.

Here are 5 mistakes that you should avoid:

Mistake #1: Not Speaking Up Early Enough

Too often, you might choose to stay quiet in meetings.

You might fear sounding inexperienced. You might think staying silent will make you seem more competent. But it usually just means you get overlooked and miss the chance to contribute.

Instead, speak up. Share your perspective, even if it’s just a question.

This will help you grow, build confidence, and lead to be project outcomes.

Mistake #2: Avoiding Hard Conversations

A good account manager keeps clients happy.

A bad account manager lets clients down.

But a legendary account manager has difficult conversations that make your agencies work better.

Remember: keeping clients happy is important, but creating meaningful impact is what truly makes the biggest difference.

Mistake #3: Not Understanding People's Roles in Your Agency

Everyone in your agency should want to hit the same goal for the project. But they also have their own individual goals too.

Take the time to understand what each person's goals are, whether they’re in creative, strategy, or technology. Work with them to help achieve those goals.

This makes you a team player and earns you respect. Plus, when everyone feels their individual goals are recognised, they’re more motivated to work towards the overall success of the project.

Mistake #4: Not Using the Magic Phrase - 'I'll Get Back to You'

You don’t need to have all the answers on a client call.

Too often, new managers feel pressured to provide immediate answers to every question a client asks. But the truth is, it’s better to take a moment and make sure you’re giving the right information.

Instead of guessing or feeling overwhelmed, use the magic phrase: 'I'll get back to you.' This gives you time to consult with experts, find the right answer, and respond confidently.

When you do this, you build trust with your clients by ensuring they get the best possible answer, and you won't look inexperienced.

Mistake #5: Overestimating Your Capacity

You might think you can take on every project.

You might think you have unlimited time.

You might think burnout won’t happen to you.

But it will if you’re not careful.

You need to communicate your capacity. There will be days when you need to stay late to get things done, and you should hold yourself accountable for that. But most days, you should aim to leave on time. This keeps you balanced, avoids burnout, and helps you show up and be your best.

So, set priorities, communicate your limits, and manage your time right from the start.

Your Path to Success

Project and account management can be tough, but avoiding these mistakes will set you up for success.

One final tip: always ask for feedback.

It's the quickest way to learn and improve, and it shows that you're committed to delivering the best results.

Ask for feedback, speak up, face tough conversations, understand others' goals, use 'I'll get back to you,' and be honest about your capacity.

These steps will help you grow, earn respect, and build strong relationships.

Stay proactive and balanced—you've got this!