Resolve your doubts about the use of international and regional phone prefix codes to ensure your contacts' accuracy in message broadcasts, and learn how to avoid errors and additional charges in Zenvia Customer Cloud's broadcasts.

Why should I review the international and regional phone prefix codes of my contacts?

Reviewing the international and area code prefixes ensures that your messages are delivered to the correct contacts. Without the correct formatting, the dispatches will not be executed and may incur additional charges.

How can I verify if the codes are correct?

Country codes validation occurs in the second step of broadcast configuration:

Select the Countries where the broadcast will take place by checking the boxes.

Choose how users will be included:

• By importing from the contact manager (lists, contacts, or segments)
• .csv files
• Manual addition

If you choose not to validate, you might send messages to incorrect recipients or incur additional charges for unverified codes.

Invalid numbers will be blocked, and this information will be included in the dispatch reports.

How the analysis erocess works:

For .csv files:

• After importing the file, you can deactivate the analysis. If you activate the analysis, we will present the results for correction.
• In case of a failure, an error message will be displayed requesting a new attempt.

For manual addition:

• After configuring the numbers, click on Analyze and add contacts.
• If the formatting is correct, you will be directed to the broadcast Summary.
• If the formatting is incorrect, the message "Phone numbers without prefix codes were found. Please review the formatting of your contact list before proceeding." will be displayed, and you will need to correct the formatting.

By clicking I understand, you declare that:

• You acknowledge the warning about possible additional costs due to lack of analysis.
• You agree to the terms of additional costs.

How can I correct my contacts' codes, if necessary?

Make sure all phone numbers in your contact list are formatted with the international prefix code, area code, and complete number, including the country code, region, and local number.

For example, for numbers in Argentina, the area code should always be included without the 9 between the regional code and the phone number, thus appearing as: 54 (AAA)XXXX-XXXX, without spaces or hyphens.

For numbers in the United States, consider the format Country Code + Area Code + Phone Number, noting that the country code is +1. Therefore, the format would be: 1(AAA)XXX-XXXX, where AAA represents the area code and XXX-XXXX represents the phone number.

Check the country codes:

If you are sending messages to recipients through importing a .csv file, check the Phone column of the contacts to ensure the phone number formats are correct for each contact in the file, following the aforementioned guidance, and correct the file.

If you are adding recipients manually, it is important to check the phone number formats and ensure there are no hyphens, spaces, or additional periods in the middle of the number. These additional characters can cause errors when sending messages.

Remember that when adding contacts manually, use a semicolon (;) as a separator between one phone number and another on the list. This helps ensure that each number is recognized individually by the system.

Where can I find more information on the subject?

Check out the step-by-step tutorials for sending messages on channels that require international and regional telephone prefix codes for Zenvia Customer Cloud deliveries:

• Send SMS messages
• Send WhatsApp messages
• Send RCS messages

For doubts about .csv file formatting, see Creating CSV files for import.