## 1 Introduction  
Technology-based innovation is the main support in the efficient implementation and transformation of present business processes [1]. With the development of companies, the digital transformation of business processes and models has increased in order to gain competitive advantages through the use of the Internet of Things (IoT). Connecting anytime and anywhere with IoT solutions is done through a vast network of electronic devices containing sensors or software [2], connected people, connected networks, connected data and connected processes that have created revolutionary opportunities in the economy, society, business and personal life [3]. It is estimated that by 2030 there will be over 500 billion devices connected to the Internet [4]. However, the availability of IoT technologies and solutions does not guarantee acceptability from end users. As a result, understanding user acceptance becomes an essential condition for expanding the use of IoT applications in everyday life. Although users enjoy multiple benefits [5; 6; 7; 8; 9; 10], the proliferation of new communication technologies has raised privacy and security issues due to the unprecedented amounts of information it can collect, analyze and store [11]. Researchers have conducted studies on the possible implications of IoT services on users' lives, and as a result, understanding user acceptance becomes an essential condition in the daily expansion of IoT applications. As IoT development is still in its infancy, few studies have been devoted to understanding acceptance issues from end users and especially from the perspective of company managers. Some researchers have theoretically investigated IoT through the prism of users, governments, and companies [12; 13; 14; 15], implementation, architecture, and design [16; 17]. Other researchers have focused in their studies on investigating the negative aspects of IoT such as identification, heterogeneity, addressing and interoperability [12] or lack of acceptance of user acceptance as an obstacle in IoT adoption and deployment [18]. As the development of IoT is still at an early stage, few studies have been dedicated to understanding the problems of acceptance by end users and especially from the perspective of company managers. Given the importance given to new technologies in the digital age but also the difficulties of understanding and acceptance faced by users, this paper aims to develop and empirically test a model of the causal relationship of intrinsic and extrinsic factors that determine acceptance of IoT by managers companies. The decisional problem is described by the question: To what extent do specific elements of motivation influence the behavioral intention of Romanian managers related to the use of IoT solutions in professional activity? The purpose of marketing research was to identify factors in the spectrum of intrinsic and extrinsic motivations and determine their impact on the behavior of using IoT solutions among company managers in Romania in the future. The objectives of our research aim at: (1) Assessing the impact of the variables: Effort Expectancy, Attitude Towards IoT, Perceived Autonomy and Perceived Competence and Perceived Relatedness on the spectrum of intrinsic motivation; (2) Determining the direct impact of the factors: Performance Expectancy, Social Influence, Facilitating Conditions, Perceived Privacy and Perceived Risk/Security on extrinsic motivation; (3) Determining the way in which intrinsic and extrinsic motivation influences the behavioral intention to use IoT solutions by the managers of Romanian companies at work. This study intends to make several contributions such as: (1) researching and identifying the intrinsic and extrinsic motivations of company managers in accepting and using IoT solutions; (2) the extension of the specialized literature by determining the impact of the spectrum of motivations on the behavior of future use.