Universal containers (UC) is a communication using commination cloud and would like to introduce a...

For introducing a limited-time offer with a 10% discount for three months, configuring Promotions (B) in Salesforce Communications Cloud is the most appropriate solution. Promotions allow for the creation of time-bound offers that can be applied automatically or manually to applicable orders, providing flexibility and control over discount application.References:Salesforce Communications Cloud documentation on promotions and discount management