Is it necessary for Hong Kong, Macao and Taiwan to open SMS?

Whether Hong Kong, Macao and Taiwan open SMS depends on users' personal needs and conditions. If users need to receive short messages from Hong Kong, Macao and Taiwan, or engage in local related business, they need to open short message service in Hong Kong, Macao and Taiwan. Because it can help users get important information in time, such as local news, emergency notice, etc. In addition, the introduction of SMS service in Hong Kong, Macao and Taiwan can also improve the local influence of users, such as sending promotional information to local customer groups and increasing sales opportunities. However, if users do not need to receive short messages in Hong Kong, Macao and Taiwan, or do not need to engage in local related services, they may not need to open short message services in Hong Kong, Macao and Taiwan.