Using bulk SMS marketing can be an effective way to create urgency and increase donations during fundraising campaigns. Here are some tips to help you get started:

1. Build a targeted list: Create a list of phone numbers belonging to your past donors and potential donors who have shown interest in supporting your charity. Segment your audience based on their donation history, interests, and engagement with your charity.
2. Use a sense of urgency: Use language that creates a sense of urgency, such as “Only 24 hours left to donate” or “Last chance to make an impact.” This can encourage your audience to act quickly and make a donation before the campaign ends.
3. Set a clear goal: Set a clear fundraising goal and communicate it to your audience. Let them know how much you need to raise and what the funds will be used for.
4. Provide details: Provide details of your charity’s mission and the impact of the campaign. Explain how donations can help your charity achieve its goals and make a difference in the lives of those you serve.
5. Use clear and concise messaging: Keep your messages short and to the point. Use language that is easy to understand and avoid jargon or technical terms.
6. Include a call to action: Encourage your audience to take action by including a clear call to action, such as “Donate now” or “Make a difference today.”
7. Provide updates: Keep your audience informed about the progress of the campaign. Send updates on how much has been raised so far and how much more is needed to reach the goal.
8. Timing is key: Send your messages at a time when your audience is most likely to be receptive. Send reminders closer to the end of the campaign to create urgency.
9. Use a reliable SMS service provider: Choose a reliable SMS service provider to ensure that your messages are delivered promptly and efficiently.
   By following these tips, you can use bulk SMS marketing to create urgency and increase donations during fundraising campaigns. Remember to thank your donors and keep them informed about the impact of their donations.