Assertiveness with Difficult Clients

Develop your assertiveness to stand firm with demanding clients while maintaining quality professional relationships.

80% hands-on practice
3-10 participants
100% actionable
Leaders League Excellent 2026

They trust us to train their teams

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Why develop your assertiveness?

Demanding clients, excessive pressure, unreasonable requests: knowing how to say no while maintaining the relationship is an essential skill for any sales professional.

Understand difficult behaviors

Learn to identify the motivations behind difficult behaviors and adapt your approach accordingly. Distinguish between what is negotiable and what is not, without losing sight of your commercial objectives.

Develop your assertive communication

Master the techniques of assertive communication: express yourself clearly and firmly without aggression. Learn to formulate constructive refusals that preserve the relationship.

Handle tense situations

Acquire tools to manage stress and defuse conflicts. Turn difficult situations into opportunities to strengthen trust and position yourself as a reliable partner.

Learning Objectives

By the end of this training, you will be able to:

  • Identify types of difficult clients and their motivations
  • Develop assertive communication in tense situations
  • Say no constructively while maintaining the relationship
  • Handle aggressive or manipulative behaviors
  • Turn difficult situations into trust-building opportunities

Target Audience

This training is designed for: Sales Representatives, Account Managers, Key Account Managers

Program

Before the Training

  • Complete a self-assessment on assertiveness
  • Identify difficult client situations to work on during training

During the Training

1

Understanding difficult behaviors

  • Identifying types of difficult clients and their motivations
  • Understanding emotional mechanisms and reactions
  • Analyzing your own reactions to difficult situations
2

Developing assertive posture

  • Defining assertiveness vs. aggression vs. submission
  • Practicing assertive communication techniques
  • Formulating constructive refusals
3

Handling tense situations

  • Managing stress and emotions in real-time
  • Defusing conflicts and aggressive behaviors
  • Turning difficult situations into opportunities
4

Practice and action plan

  • Role-plays on your real difficult situations
  • Personalized feedback from trainer
  • Building your action plan

Training Methods

  • Theoretical and methodological content
  • Role-plays and simulations
  • Work on your real cases
  • Personalized feedback from the trainer

The specialist in sales and customer relations for 20 years

100+ programs designed by our instructional engineers and delivered by 40 field specialists.

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Frequently Asked Questions

What is assertiveness in a sales context?

Assertiveness is the ability to express yourself clearly and firmly while respecting your counterpart. In sales, it means knowing how to say no, defend your prices, and handle objections without aggression or submission.

Who is this training for?

This training is designed for sales professionals regularly facing difficult clients or tense situations: account managers, key account managers, and sales reps who want to strengthen their ability to stay firm while maintaining the relationship.

How does the practical application work?

80% of the training is dedicated to practice. You will work on your own difficult situations through role-plays and receive personalized feedback from the trainer to develop your assertiveness.

Is this training eligible for OPCO funding?

Yes, KESTIO is Qualiopi certified. This quality certification enables our training programs to be funded by OPCO. Contact us for a personalized quote and funding options.

Request a Quote

An expert will call you back to discuss your needs and support you.

Contact Us Directly

Our team is available to answer all your questions about this training.

Hours: Monday - Friday, 9am - 6pm (CET)