Bulk SMS marketing can be an effective way to reach a younger audience and increase donations for your organization. Here are some tips to help you use bulk SMS effectively:

1. Build a targeted list: Develop a list of phone numbers that belong to your target audience, in this case, younger people who may be interested in donating to your cause. You can gather this information through sign-ups, online campaigns, or events.
2. Segment your audience: Segment your audience based on demographics, interests, or behavior to personalize your messaging and make it more relevant.
3. Use a clear and concise message: Keep your message short, simple, and to the point. Make sure it clearly explains your cause, what you’re asking for, and how they can donate.
4. Include a call to action: Encourage your audience to take action by including a clear call to action, such as “Donate now!” or “Click here to learn more.”
5. Timing is key: Choose the right time to send your messages. Avoid sending messages too early in the morning or too late at night. Weekends are also a good time to send messages, as people tend to have more free time.
6. Use a reliable SMS service provider: Choose a reputable SMS service provider to ensure that your messages are delivered on time and are not marked as spam.
7. Monitor and measure your results: Track your SMS campaign’s success and make adjustments as needed. Analyze data such as open rates, click-through rates, and donation rates to understand what’s working and what’s not.
   By following these tips, you can use bulk SMS marketing to reach a younger audience and increase donations for your organization.