The paid workbook does not impose a campaign allowance, but your mobile carrier and Pushbullet can limit sending. Check those limits before starting.
What an unlimited plan covers #
An unlimited-text allowance is subject to the carrier’s terms, destinations and fair-use policy. It is not a promise that every bulk or business message is permitted or will arrive. Ask your carrier about the intended use and any hourly or daily limits.
Before a larger send #
Message people who expect to hear from you, test with a consenting recipient, check the result and honor opt-outs. Count multipart SMS and other messages sent from the same SIM. There is no universal safe daily volume.
If sending is restricted #
Stop and contact your carrier. Changing the wording, adding phones or swapping SIMs does not resolve the underlying restriction.
Related guidance: How Do I Warm Up My SIM Card?, SMS Best Practices.