Your WhatsApp Marketing AGENCY
We help ambitious online shops generate 15%-30% additional revenue.
Mailody - your CRM partner
When our journey as the Mailody agency began 3.5 years ago, we had no idea how quickly we would grow. Starting with a maximally small team, we have since grown to 20 team members and expanded across all key functions. Our way of working has also changed. While we started as a pure email marketing agency, we have become a dedicated CRM partner for our many customers over these few years. First expansion: print mailing.
Today we share how WhatsApp marketing works at our agency and how we can support you and your business with WhatsApp Business.
In 2024, we are launching a second addition at our agency: WhatsApp marketing. After receiving over 20 inquiries for WhatsApp marketing from our customers last year, it was clear: we need to expand here. Towards the end of 2023, we started testing with our first customers and in no time established Chatarmin and Hello Charles as WhatsApp marketing tools at our agency. Our goal is to centralize all CRM activities at our agency in the near future.
Exciting case studies
with our clients
JUNGLÜCK
JUNGLÜCK
Resolving spam issues & unlocking T-Online addresses
PAUL HEWITT
PAUL HEWITT
Email system migration & doubling of email revenue
REISHUNGER
REISHUNGER
Migration from Mailchimp to Klaviyo & automation strategy
BB VERPACKUNGEN
BB VERPACKUNGEN
€700k+ additional revenue through smart automation strategy
NIKIN
NIKIN
5-figure additional revenue through segmentation & multilingual campaigns in Switzerland
GIESSWEIN
GIESSWEIN
Generating 25k product & company reviews
What is WhatsApp Marketing?
WhatsApp marketing refers to using the popular messaging platform WhatsApp for business and marketing activities. With more than two billion active users worldwide, WhatsApp offers enormous reach for businesses to interact with their customers as quickly as possible. As a business, you can easily maintain direct communication with your customers. You can achieve this communication through WhatsApp Business by sending personalized messages, offers, product updates, and customer support. WhatsApp Business lets you connect with your customers on a channel they use every day.
On top of that, with WhatsApp marketing you can share various images and videos with your customers to showcase your products or services in an engaging way.
One of the most effective WhatsApp marketing strategies is building broadcast lists or groups to send targeted messages to specific audiences. Businesses can also use WhatsApp Business Status to share current information with their customers.
However, it is important to emphasize that WhatsApp marketing requires your customers' consent to ensure compliance with data protection rules and to prevent spam. Businesses must make sure their contacts accept the communication and have the option to opt out of WhatsApp marketing.
If you follow these rules, WhatsApp marketing gives you the opportunity to build a strong relationship with your customers.
How does WhatsApp marketing work in combination with other CRM channels
WhatsApp marketing in combination with other Customer Relationship Management (CRM) channels opens up many possibilities to strengthen customer loyalty and drive personalized interactions. Effective integration allows information to flow seamlessly between channels and optimizes customer communication.
An integrated CRM system can, for example, collect customer data from various sources and manage it centrally. By connecting to the WhatsApp Business API, businesses can use this data to send personalized messages. The CRM can provide information about past interactions, preferences, and purchase histories, resulting in tailored offers and recommendations for your customers.
Integrating WhatsApp with CRM also enables consistent customer communication across channels. If customers, for example, submit an inquiry via email and later reach out through WhatsApp, the business can respond to both requests seamlessly without the customer having to provide the same information again.
Automating marketing processes via CRM systems can also increase efficiency. Businesses can set up automated WhatsApp notifications for birthday greetings, offers, or reminders, based on information stored in the CRM, inside WhatsApp Business.
Overall, integrating WhatsApp into CRM systems enables a comprehensive view of your customers and a coordinated interaction across channels, strengthening customer loyalty and improving the effectiveness of the marketing approach.
Which WhatsApp marketing tool do we use?
Thanks to its user-friendly interface and global popularity, WhatsApp has become a powerful tool for customer communication. More and more businesses use the tool to connect with their customers faster. But with various WhatsApp marketing tools on the market, it can be difficult to find the right one for your business. In this section, we take a closer look at the three most common WhatsApp marketing tools today: Chatarmin, Hello Charles, and Sinch Engage.
As a WhatsApp marketing agency, we currently work only with the WhatsApp marketing software Chatarmin and the WhatsApp marketing software Charles.
The WhatsApp marketing tool Chatarmin offers various features to improve communication with your customers on WhatsApp. As the only bootstrapped startup among providers in WhatsApp marketing, Chatarmin stands out as a cost-efficient and flexible alternative to Hello Charles. Based in Vienna, the company convinces us with a modern UI/UX design and fair pricing. The focus on bootstrap methods makes Chatarmin stand out in the industry and shows that even with limited resources, a competitive solution for WhatsApp marketing can be built. This independence and economic efficiency make Chatarmin an attractive choice for businesses looking for a cost-efficient yet powerful alternative for their WhatsApp marketing.
The WhatsApp marketing tool offers natively integrated interfaces to popular e-commerce platforms like Shopify, Shopware, and Klaviyo, enabling smooth integration into your own e-commerce stack. Shopify WhatsApp marketing is therefore also possible. A standout feature of Chatarmin is real-time chat translation, which allows businesses to translate messages immediately into different languages.
On top of that, the WhatsApp marketing tool offers powerful analytics and reporting features, including flow analysis, to identify conversion rates and efficiency issues. Chatarmin also enables campaign analyses and ChatGPT A/B tests to optimize the effectiveness of marketing strategies. With seamless integrations into common CRM and helpdesk software as well as Zapier, Zoho, and other platforms, Chatarmin makes it easy to plug into existing systems.
Hello Charles has shaped the German WhatsApp marketing industry for several years. The German WhatsApp marketing tool describes itself as a "multi-messenger customer support suite" aimed at optimizing communication between businesses and their customers. The intuitive user interface of charles offers businesses a seamless way to manage conversations, create automated replies, and provide exceptional customer service.
Hello Charles offers businesses a powerful platform for effective WhatsApp marketing. With automated reply functionality, businesses can respond quickly and precisely to frequently asked questions, ensuring efficient customer communication. The ability to create and save message templates saves time and energy by streamlining recurring responses. In addition, Hello Charles provides comprehensive analytics and reporting features that let businesses closely monitor engagement, response times, and customer satisfaction.
These insights help businesses optimize their WhatsApp marketing strategies and respond to the needs of their customers. The WhatsApp marketing tool supports multiple languages and is therefore ideal for a global customer base.
A third option for WhatsApp marketing is Sinch Engage. This WhatsApp marketing tool focuses on efficient and trustworthy multi-messenger customer support.
Since there is no Klaviyo integration, this WhatsApp marketing tool is not an alternative for us as an agency.
Sinch Engage does, however, offer a powerful platform for automating customer service. With advanced tools like the WhatsApp marketing bot and automated replies, businesses can make their customer support more efficient.
A standout feature of Sinch Engage is the ability to send broadcast messages to multiple customers at once. This enables effective and targeted communication, letting businesses reach a wide audience with their messages. In addition, Sinch Engage offers comprehensive analytics and reports, letting businesses track customer engagement and measure the success of their marketing campaigns. The platform places great emphasis on data security and compliance with GDPR regulations to ensure the confidentiality and security of customer data.
In 4 steps to your first WhatsApp Business newsletter
So how do you get started with your first WhatsApp campaign in WhatsApp Business? Here come 4 steps for your WhatsApp marketing strategy.
The best WhatsApp newsletters start with collecting leads from your existing customers. With Chatarmin, for example, you can create a chat-start link that you can personalize as often as you like. Embed this as a link or QR code on your website or in an email newsletter.
Create a welcome automation with double opt-in. With Chatarmin, for example, you can use the UI/UX-friendly "Flowbuilder" for this:
Send campaigns to your WhatsApp newsletter list and run A/B tests. In the newsletter WhatsApp Business, you can then choose which segment to send to.
Analyze and improve your marketing on WhatsApp. Only by testing and regularly analyzing open rate, click rate, cost, revenue, and unsubscribe rate can you continuously improve your WhatsApp Business.
Cost of WhatsApp marketing
To run WhatsApp Business, you can use the free WhatsApp Business App. However, this is better suited for small businesses. It offers some useful features for businesses with quick replies, a catalog, and broadcasts to up to 256 recipients. The Business App works similarly to the WhatsApp app used by private users. Since the Business App is limited to a single employee account, it is not suitable for professional customer service or the service and marketing communication of larger businesses.
For these larger businesses, the WhatsApp Business Platform, also known as the WhatsApp Business API, is the right fit. It is scalable and can be flexibly integrated with your business processes and infrastructure. Only with the WhatsApp Business API can you send approved WhatsApp newsletters. The WhatsApp Business API is used through tools like Chatarmin described above and, unlike the WhatsApp Business App, is not free.
Tool costs at a glance
Below is a pricing overview of common WhatsApp Business tools:
The flexible pricing of the WhatsApp marketing tool Chatarmin depends on the number of agents and desired features, starting from €99.00 per month. This makes Chatarmin a cost-efficient solution for businesses of every size that want to professionalize their WhatsApp marketing efforts.
Monthly memberships for the WhatsApp marketing tool Hello Charles start at around €420.00, while at special events like OMR or DMEXCO, time-limited promotions at lower prices may be offered. It is important to note that Hello Charles's pricing structure is designed so that scaling the tool, the conversations, and WhatsApp revenue leads to additional costs.
Sinch Engage offers a variety of pricing plans tailored to the individual needs of different businesses. Fees are determined by the number of messages sent per month as well as the desired features. The cost of using Sinch Engage starts at €199.00, but rises quickly. Adding just five customer agents already increases the monthly cost to €399.00, which may make this option less practical for smaller businesses. At €0.70 per message, Sinch Engage is the most expensive WhatsApp marketing tool.
We will share more about the cost of WhatsApp marketing and WhatsApp Business tools in a separate article soon.
Is WhatsApp marketing GDPR compliant?
One of the most important questions we need to ask ourselves in WhatsApp marketing is whether a WhatsApp marketing campaign is GDPR (General Data Protection Regulation) compliant. Privacy and data protection are equally important to both private individuals and businesses. Fundamentally, with WhatsApp, you need to distinguish between WhatsApp for private users, WhatsApp Business, and the WhatsApp Business API.
The General Data Protection Regulation (GDPR) is a comprehensive data protection law of the European Union that aims to protect the personal data of EU citizens. It was introduced to make sure individuals retain control over their personal data and that businesses handle this information responsibly and transparently.
It applies to all individuals, businesses, or organizations that process personal data of people in the EU.
Businesses using WhatsApp for marketing or customer engagement collect personal data such as phone numbers, names, and potentially more detailed information about individuals. Therefore, the data protection rules of the GDPR also apply to WhatsApp, just as they do to other communication channels like email and SMS. So what about the Business App and the WhatsApp Business API?
WhatsApp Business App
The WhatsApp Business App is aimed at small businesses or individuals communicating with a limited number of people. Businesses must obtain consent manually and make sure data is stored securely and handled responsibly. Although GDPR compliance in the app requires more manual work, businesses can still follow the principles of the regulation.
WhatsApp Business API
The WhatsApp Business API for larger businesses offers the ability to set up GDPR-compliant WhatsApp communication using automation features such as double opt-in. In addition, the WhatsApp Business API makes it easier to automatically store consent information and ensures secure data storage, since businesses can decide whether to store customer data on EU servers to comply with GDPR requirements.
Businesses must ensure GDPR compliance for a WhatsApp campaign to protect the personal data of their customers. It is essential to obtain proper consent from customers for WhatsApp advertising, to handle data responsibly, and to offer simple opt-out options.
As one of the few Klaviyo Master Elite Partners, we maintain a close collaboration with Klaviyo and get early access to feature launches for our portfolio clients.
James White
Senior Director,
Partnerships — EMEA
“Klaviyo and Mailody have been working closely since 2019 and have worked on over 300 shared customers together over the last 7 years. Thomas, Tizian and the team are well regarded for their customer-first approach, managing accounts and providing strategic services around Klaviyo CRM. They have a proven track record across great brands like Junglück, Schleich, Everdrop.
This earned them Klaviyo Elite partner status back in 2024, the first German partner to reach this top tier, putting them in the top 0.0025% of Klaviyo's 20k+ services partner programme. They built on this winning Agency Partner of the Year, EMEA at K:BOS 2025. The Klaviyo EMEA team and I look forward to continuing our partnership as we expand our presence in Central Europe through 2026+”
Case Study Paul Hewitt -
Email revenue doubled
Two years ago, Paul Hewitt was still using the spray-and-pray approach — every email was sent unfiltered to the entire database. Together we implemented automations, built out segmentation, and ran 30+ lead gen campaigns.
2
-week migration
>22%
revenue share doubled (Klaviyo)
>40%
open rate (Klaviyo)
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