Customer dunning and collection: best practices for improving collection and reducing payment times

Customer follow-up and collection
What is a customer reminder?

Customer dunning refers to all actions taken to obtain payment of an invoice that has fallen due or is overdue.
As such, it is a cornerstone of credit management and a key lever for reducing DSO and improve cash flow.

Why customer reminders are strategic

An effective customer reminder has a number of benefits. It allows :

  • speed up collections
  • reduce overdue payments
  • secure cash
  • improve customer relations

On the other hand, a poorly structured customer reminder has a number of consequences. These include:

Discover Aston Cash Collection, the automated collection software that 


turns your accounts receivable into a growth lever created by Aston AI.

Common mistakes in customer reminders

1. Relaunch too late

Waiting several weeks after the due date greatly reduces the chances of payment. In fact, the longer the delay, the greater the risk of non-payment.

2. Irregular relaunching

What’s more, an unstructured customer reminder is ineffective.

3. Lack of traceability

Without a history, it’s difficult to keep track of what’s been done. As a result, management becomes less effective.

4. Lack of customization

On the other hand, a generic customer reminder is less effective.

5. Use of unsuitable tools

Finally, Excel and conventional tools limit the performance of customer collection. As a result, teams lose efficiency.

Best practices for customer reminders

1. Relaunch before the deadline

In this way, pre-delivery anticipates delays and improves collections.

2. Structuring a recovery scenario

An effective customer relaunch is based on a defined plan. For example, it may include :

  • email reminder
  • phone call
  • mail if necessary
3. Automate customer reminders

Collection software offers a number of advantages. It enables you to:

  • automatically trigger reminders
  • standardize messages
  • save time

What’s more, it improves stock consistency.

4. Adapt tone and message

The tone must evolve according to the situation. It can be:

  • preventive
  • farm
  • more direct in the event of long delays
5. Track payment promises

Lastly, a promise to pay must be strictly adhered to. Otherwise, the risk of delay persists.

Customer follow-up and team organization

Good organization is essential. Several teams are involved .

Collection team
  • dunning management
  • payment tracking
Sales team
  • managing disputes
  • billing quality
Credit manager
  • global strategy
  • risk analysis

The importance of automation in customer reminders

Today, a modern customer relaunch is based on :

  • automated scenarios
  • a timeline of actions
  • real-time tracking

This makes it possible to :

  • industrialize collection
  • prioritize actions
  • reduce DSO

Read the user reviews of those who have decided to place their trust in Aston AI for their collections.

Customer reminder and collection software

Collection software allows you to centralize your actions. It also enables you to :

  • automate reminders
  • monitor incoming payments
  • steering performance

However, standard software has its limitations. They perform less well on :

  • personalization
  • advanced automation
  • cash management

AI and customer reminders

Artificial intelligence brings new capabilities. It enables :

  • prioritize reminders
  • identify customers at risk
  • optimize messages

In this way, it improves overall collection efficiency.

Impact on DSO and cash flow

An effective customer reminder has a direct impact. It allows :

  • reduce DSO
  • improve cash flow
  • secure cash receipts

Customer dunning is a major driver of financial performance.
Therefore, it must be :

  • structured
  • automated
  • driven

Last but not least, high-performance collection software is the key to achieving these objectives.

FAQ - Customer reminder

When should you remind a customer?

Before the due date and immediately after in the event of late payment.

How to automate customer reminders?

With collection software incorporating automated scenarios.

Who manages customer reminders?

Collection teams, in liaison with the sales department and credit manager.

Aston AI: From Order to Cash

Founded in 2011, ASTON AI, voted Fintech of the Year 2015, has revolutionized the receivables management market in ten years by offering a high-performance, simple, comprehensive and innovative platform. ASTON AI’s platforms benefit from 10 years of continuous technological development and an in-house R&D department dedicated to digital services.

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Software that takes care of all your reminders

“Very functional software that manages thousands of reminders automatically according to established scenarios.”


Laurent G. (FR) – Jan. 3 2025

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ASTON AI An ever-reactive team

“Aston is responsive when problems are encountered, when evolution requests are made or when special help is needed.”

Nathalie Perrin (FR) – Jan. 6 2025

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⭐ Average ASTON AI customer review: 4.3 / 5 – Excellent

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Satisfied with ASTON AI customer workstation dunning platform

“An easy-to-implement solution with rapid cash flow gains.

Support is available and responsive. Regular additions of new functionalities bring more possibilities to dunning management and customer analysis, without complicating the user’s work.

Fabrice GINANE. Credit Manager. Abysse corp.
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High-performance collection software and exceptional customer service!

“We have just implemented the ASTON AI solution and are very satisfied with the quality of their collection software. The interface is intuitive and easy for team members to learn. The quality of their customer service is outstanding: responsive and attentive, they support us every step of the way, and their advice is invaluable in optimizing our processes.We highly recommend ASTON AI to any company looking to improve its collection management performance. “

Start People Credit Manager ETI 1.5 billion Euros sales May 15, 2025
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A must! ASTON AI Cash Collection credit management software

“Aston AI is the really indispensable tool for collections, for its ergonomics, its fluidity, this tool is really very reliable, the DSO is significantly improved.
Support is always available, a top team. “

BUFAB. Christophe Reynaud. Credit Manager. Member of AFDCC. September 03, 2025
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A reminder software essential to everyday life

“I use Aston every day, for me it is essential in managing customer reminders, extremely easy to use. I recommend it.”
Sylvia Delale (FR) – Jan. 8 2024

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ASTON AI fast, efficient support

“ASTON AI Cash collection

Fast, efficient customer service!”
Nadine (FR) – Dec. 30 2024

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Software to optimize DSO

“Aston AI allows me to send out reminders to customers who are behind with their payments. The solution is quite practical. You can personalize your reminder messages. Recently, I’ve been looking to optimize my DSO and this solution is just right for me. I recommend it.“
Louis du Pré (FR) – March 15, 2025

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Comprehensive, time-saving order-to-cash platform

“Easy to use and very complete platform. Saves a lot of time for follow-up and reminders. Technical support very responsive and ready to find solutions for its customers. Really recommend.”
Sacha (FR) – Dec. 27 2024

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Fluid, easy-to-use software

“I find Aston AI very fluid, after the training it’s easy to get the hang of. If we need improvements, the development department and Julien are very responsive.”
Margot Kuntz (FR) – Dec. 20 2024

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Excellent collection software platform

“Excellent product for tracking collections. Promise kept by very responsive customer service.”
Customer (FR) – Dec. 20 2024

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Efficient, scalable customer reminder software

“Aston AI gives us a dedicated and efficient Credit Management tool. It’s easy to access and use. The Aston AI team is responsive to our needs. Evolutions have been carried out, which is a real plus.”


Annabelle Pain (FR) – Dec. 30 2024

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