Promotional SMS refers to text messages that businesses or organizations send to their customers or target audience with the intent of promoting a product, service, or event. These messages are usually sent in bulk to a large number of recipients and are often used as a part of a marketing campaign.

Promotional SMS can be an effective marketing tool for businesses, as they are delivered directly to the customer’s mobile phone and have a high open rate. However, it’s important to ensure that recipients have given their consent to receive these messages, and to comply with any relevant laws and regulations regarding SMS marketing.