Kaplan categorizes mobile marketing along the degree of consumer knowledge and the trigger of communication into four groups: strangers, groupies, victims, and patrons. Consumer knowledge can be high or low and according to its degree organizations can customize their messages to each individual user, similar to the idea of one-to-one marketing. Regarding the trigger of communication, Kaplan differentiates between push communication, initiated by the organization, and pull communication, initiated by the consumer. Within the first group (low knowledge/push), organizations broadcast a general message to a large number of mobile users. Given that the organization cannot know which customers have ultimately been reached by the message, this group is referred to as "strangers". Within the second group (low knowledge/pull), customers opt to receive information but do not identify themselves when doing so. The organizations therefore does not know which specific clients it is dealing with exactly, which is why this cohort is called "groupies". In the third group (high knowledge/push) referred to as "victims", organizations know their customers and can send them messages and information without first asking permission. The last group (high knowledge/pull), the "patrons" covers situations where customers actively give permission to be contacted and provide personal information about themselves, which allows for one-to-one communication without running the risk of annoying them.[45]

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Sample size indicates the size of the group of people who are going to receive your message. The size of this group and the amount of conversions you’re getting determines the significance of your test. Significance refers to whether we can rely on the made changes to have generated these results, or whether we can’t rely on the changes, but see that the results were simply due to chance. What this really means is that we want to be able to say: we can be 95% sure that the changes we made will improve our conversion rate. 
Traditionally, agencies have relied on old-fashioned channels for advertising, resulting in a madhouse of billboards, emails, television and radio ads, all competing in unison to be heard or seen by your clients’ target audience groups. But email open rates have plummeted to a lackluster 22%; radio and television ads are expensive for clients and unreliable as a method of engagement; direct mail gets lost and has an open rate of only 2-5%. It’s time to update your clients’ marketing methods -- and luckily, that means simplifying the way they think about and approach prospect outreach.

The advancement of mobile technologies has allowed the ability to leave a voice mail message on a mobile phone without ringing the line. The technology was pioneered by VoAPP, which used the technology in conjunction with live operators as a debt collection service. The FCC has ruled that the technology is compliant with all regulations.[36] CPL expanded on the existing technology to allow for a completely automated process including the replacement of live operators with pre recorded messages.[37] By optimizing the technology, marketers can utilize the process to increase engagement of their product or service.
Due to the dynamic nature of (SMS/MMS) marketing technology and the messaging industry, the Messaging Compliance Rules are constantly being updated from time to time. As a result, I’d strongly encourage clients to review vendors’ terms and conditions and proposed use cases with qualified legal counsel to make sure that they comply with all applicable laws.