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What should I do if I don’t have customer phone numbers for overseas marketing? Cross-border team solutions

What should I do if I don’t have customer phone numbers for overseas marketing? Cross-border team solutions

  • 2026-02-26

Preface

Many cross-border teams that have just entered overseas markets will encounter a practical problem:
No customer data.

There are no customer emails, no phone numbers, no database of potential users.

This means:

High advertising costs, slow customer acquisition, and difficult market testing

Therefore, more and more companies are beginning to solve this problem through number generation and screening tools , such as Dingdang Assistant .

So, how should a business start overseas marketing without a customer phone number?

Why customer phone numbers are so important

In the overseas marketing system, phone numbers are not only contact information, but also:

Private domain traffic entrance

CRM data base

Marketing reach channels

Especially in the following countries:

India Brazil Southeast Asia Middle East

WhatsApp has become the primary communication tool.

Therefore, having a customer number means:

You have direct access to your customers.

How to build a customer number database from scratch

Usually companies will adopt three methods:

The first type: Advertising acquisition <br>The cost is high, but the accuracy is high.

The second type: customer retention <br>needs long-term operation.

The third type: number generation + filtering is the most efficient.

Generating numbers through tools can:

Quickly cover target markets

Create an initial customer pool

Conduct marketing tests

For example:

A cross-border team can be generated in a day:

50,000-200,000 potential customer numbers.

This was almost impossible to accomplish in the past.

How does a truly efficient team do market validation?

Truly mature cross-border teams will adopt data-driven customer acquisition .

They usually do this:

first step
Generate market number data

Step 2
Filter WhatsApp users

Step 3
Test marketing rhetoric

Step 4
Analyze conversion rates

This process can complete market verification within a week.

Compared to traditional methods:

The efficiency improvement is very obvious.

Conclusion

Competition in overseas markets is becoming increasingly fierce, and it will be difficult for companies to establish advantages if they still rely on traditional ways of acquiring customers.

By building their own customer data pool, companies can find target users faster and continuously optimize marketing strategies.

This is also an important reason why more and more cross-border teams are starting to use number generation tools.

FAQ

1. Is a small team suitable for number marketing?
Very suitable because of the low cost.

2. Does number generation require technical skills?
There are basically no tools required.

3. Does WhatsApp marketing have a high conversion rate?
Usually higher than email marketing.

4. How to choose target countries?
Testing can be conducted based on product market and user needs.


Dingdang Assistant is an intelligent tool specially built for global number data processing, supporting functions such as number generation, filtering, deduplication, format conversion and collection. It has the efficient performance to process massive files in seconds and can easily handle millions of data tasks. Relying on leading algorithms and international standards, Dingdang Assistant helps enterprises achieve accurate, high-speed, and secure global number management in marketing scenarios.
Dingdang Assistant - the preferred tool for global number processing and large file batch cleaning, making data processing more efficient and smarter.