It is difficult to increase the amount of information

The! disadvantage of SMS is that you can only send text! and the number of characters is limited, making it difficult telegram data to increase the amount of information. You cannot attach images or videos, nor can you post two-dimensional codes. You can include a URL! but you need to convey the appeal! of accessing it in the message. Since SMS cannot convey all the information in the standard 70 characters or less! there are many cases where you can send! up to about 660 characters using SMS sending services.

The disadvantage of SMS is that you cannot add a subject when sending it. If you use MMS, which uses the carrier’s own successful agencies tell us about the structure that works for them email address, you can add a subject, as it is basically the same as email. However, when sending SMS, only the sender’s number is displayed. Be careful, as you cannot add an attractive subject like you can with email to get the recipient to open the message. However, since SMS has a high open rate to begin with, you can expect your message to be read without having to put any effort into the subject line.

The target audience is limited

Although there are problems with any method, the disadvantage of SMS is that the target demographic is phone database limited. Even though the ownership rate of mobile phones has increased, not everyone has one. In particular, elderly people may not have mobile phones, or may only be able to receive calls but not know how to use SMS. One thing to keep in mind when using SMS is that it is more difficult to approach the elderly demographic than direct mail.