How to Use SMS and Phone Number Validation

Overview

SMS and phone number validation in PXME helps ensure your text messages are only sent to valid, SMS-capable phone numbers. By running checks before sending, PXME prevents wasted spend on invalid, landline, or incorrectly formatted numbers. With the option to automate responses to validation errors, you can maintain cleaner contact lists and improve deliverability across campaigns.

How SMS Validation Works

• Validation Timing – Numbers are validated when the first SMS is sent to a new contact (not during contact import or creation).

• Checks Performed:

  • Identifies landline numbers

  • Detects invalid or non-existent numbers

  • Validates number formatting

This ensures that SMS messages are only attempted for numbers capable of receiving texts.

How to Activate SMS Validation

1. Navigate to Settings > Business Profile.

2. Scroll to SMS Validation Settings.

3. Check the option: Validate phone numbers when the first SMS is sent to a new contact.

4. Save your changes.

Note: A small fee applies per validation, but this reduces costs by preventing failed SMS attempts.

Creating a Workflow for Validation Errors

You can automate responses when validation errors occur, ensuring better campaign performance and follow-up.

Steps to Set Up:

1. Go to Automation > Workflows.

2. Create a new workflow or edit an existing one.

3. Add a Workflow Trigger → select Number Validation.

4. Add filters for specific errors:

   • Error 21211: Invalid phone number

   • Error 30006: SMS-incapable number

5. Add desired actions (e.g., send internal notification, log a task, send an email).

6. Save your workflow.

FAQs

Q1: What is SMS validation?
It’s a process that checks phone numbers before sending SMS, ensuring they are valid and capable of receiving texts.

Q2: How do I activate SMS validation?
Go to Settings > Business Profile, locate SMS Validation Settings, and enable the option.

Q3: Does SMS validation cost extra?
Yes. A small fee is charged per validation, but it prevents wasted SMS spend on invalid numbers.

Q4: When does validation occur?
Only when the first SMS is sent to a new contact—not during import or contact creation.

Q5: Can I automate invalid number handling?
Yes. Use the Number Validation trigger in Workflows to create automated responses for invalid or SMS-incapable numbers.