When it comes to RCS or bulk SMS campaigns , some of the main performance indicators to consider are:
1. Open rate
Refers to the number of users who open an SMS or RCS upon receiving it.

It is necessary to take into account the effectiveness of SMS in terms of the opening rate: more than 90% of people read text messages within the first 3 minutes of receiving them . If we also consider that SMS achieve up to 98% opening rates , its effectiveness when used for commercial or marketing strategies is evident.
However, in SMS there is no way to know the exact opening percentage, since the factors that can be measured are: number of records, number of records sent and number of clicks on the links in the message. If the DR (delivery receipt) is used, which has an additional cost, it is also known when the SMS was delivered to the device.