The Effect of Customers Engagement and Electronic Word of Mouth n Purchase Decision Through Purchase Intention as a Mediation Variable

(Case Study on Tomoro Coffee)

Authors

  • Indah Dwi Lestari Universitas Mulawarman
  • Novita Fitri Yanti Seragih Universitas Mulawarman
  • Moh Reza Munandar Universitas Mulawarman
  • Firdaus Rofiansyah Universitas Mulawarman
  • Rahmawati Rahmawati Universitas Mulawarman

DOI:

https://doi.org/10.55606/optimal.v6i1.9295

Keywords:

Customers Engagement, Electronic Word of Mouth, Purchase Decision, Purchase Intention, Tomoro Coffee

Abstract

This study aims to analyze the influence of customer engagement and electronic word of mouth (eWOM) on purchase decisions mediated by purchase intention among Tomoro Kopi consumers. The Structural Equation Modeling (SEM) approach with the Partial Least Square (PLS) method was used to test the relationship between variables. The sample used in this study was 80 respondents in Samarinda City. The results showed that customer engagement has a positive and significant effect on both purchase intention and purchase decision, indicating that the higher the level of customer engagement, the stronger the purchase intention and resulting purchase decision. Conversely, electronic word of mouth does not have a direct effect on purchase decisions, but has an indirect effect through purchase intention. This finding confirms that eWOM can only drive purchase decisions if it first increases consumer purchase intention. In addition, purchase intention has been proven to have a significant effect on purchase decisions, making purchase intention a key factor that bridges the consumer's psychological process before making an actual purchase.

References

Agustina, S. T., & Setiyarini, T. (2025). The influence of electronic word of mouth (e-WOM) on social media on purchasing decisions. Journal of Education and Teaching Review, 8, 8019–8025.

Azizah, N., Zuliansyah, A., & Supriyaningsih, O. (2025). The influence of user-generated content and electronic word of mouth on purchase intention of Daviena Skincare on TikTok: A review of Islamic business perspectives on generation. Jurnal Ar Ro’is Mandalika (ARMADA), 5(2), 174–189.

Bachri, S., Putra, S. M., Farid, E. S., & Darman. (2023). Digital marketing influence on customer satisfaction mediated by purchase decision. Journal of Management Applications, 21(3), 578–592.

Colie, M., Claudia, D., & Simanjuntak, Y. (2017). The mediating role of purchase intention on the influence of celebrity endorsers and social media marketing on purchasing decisions at Fore Coffee in Medan City. Journal of Business Management and Entrepreneurship.

Fishbein, M., & Ajzen, I. (1975). Belief, attitude, intention and behavior: An introduction to theory and research. Addison-Wesley.

Fitrianingsih, A., Bachri, S., Muzakir, & Farid. (2025). The influence of content marketing and electronic word of mouth (e-WOM) on purchase decision mediated by fear of missing out (FoMO): A study on Gen Z in Palu City. Entrepreneurship Business Management and Accounting, 6(1), 167–187.

Hollebeek, L. D., & Macky, K. (2019). Digital content marketing’s role in fostering consumer engagement, trust, and value: Framework, fundamental propositions, and implications. Journal of Interactive Marketing, 45, 27–41. https://doi.org/10.1016/j.intmar.2018.07.003

Huete-Alcocer, N. (2017). A literature review of word of mouth and electronic word of mouth: Implications for consumer behavior. Frontiers in Psychology, 8, 1256. https://doi.org/10.3389/fpsyg.2017.01256

Komalasari, F., Christianto, A., & Ganiarto, E. (2021). Factors influencing purchase intention in affecting purchase decision: A study of e-commerce customers in Greater Jakarta. Business & Bureaucracy: Journal of Administrative and Organizational Sciences, 28(1), 1–12. https://doi.org/10.20476/jbb.v28i1.1290

Kotler, P., & Keller, K. L. (2013). Marketing management (13th ed.). Erlangga.

Kotler, P., & Keller, K. L. (2016). Marketing management (15th ed.). Pearson Education.

Lestari, R., & Suryani, L. (2021). The effect of brand image, price perception, and product quality on purchase decision of Ms Glow skincare among students. International Journal of Business Studies, 11755–11761.

Linao, J. R. (2022). Exploring high-value coffee processing and consumer preferences in the specialty coffee market in the Philippines. International Institute for Sustainable Development.

Margaretha, D., Amanda, S., Nasution, R. A., Humairah, Z., & Hidayat, N. (2024). Performance evaluation of the Trans Metro Deli Bus on the K5M Tembung–Merdeka Walk route. Eka Prasetya Business Management Journal, 10(2), 382–389.

Meilani, A., & Nugroho, C. (2023). Coffee shop marketing strategy in facing competition in Bekasi City. Indonesian Scientific Journal, 8(1), 733–743.

Minh, S. V., Huong, G. N., Dang, G., & Ha, N. (2022). The role of social brand engagement on brand equity and purchase intention for fashion brands. Cogent Business & Management, 9(1). https://doi.org/10.1080/23311975.2022.2143308

Mukherjee, S., Jebarajakirthy, C., & Datta, B. (2020). Retailer selection compulsion in the subsistence markets. Journal of Retailing and Consumer Services, 52, 101904. https://doi.org/10.1016/j.jretconser.2019.101904

Novitalia, T. D., & Kuswati, R. (2025). The effect of electronic word of mouth and brand image on Gen Z consumers’ purchase intention for cosmetic products. EQUILNOMI: Journal of Development Economics, 7(2), 473–482.

Nurfitriyani, A., Supriadi, A., & Nupus, H. (2025). The influence of content marketing on purchase decisions mediated by brand trust and customer engagement. GEMILANG: Journal of Management and Accounting, 5(3), 826–839.

Pradnyani, N. P. D., Widagda, I. G. J. A., & Giantari, I. G. A. K. (2024). Analysis of the role of customer engagement mediating content marketing on purchase intention. Journal of Management, 13(8), 1333–1356.

Ratnawati, L. S., & Sanaji. (2024). The effect of customer engagement on online purchase intention with customer operant resources as an intervening variable. Jurnal Maksipreneur, 14(1), 45–64.

Salsabila, N., & Lestari, T. (2025). The influence of attitude towards the Shopee platform and electronic word of mouth on Generation Z’s purchase interest. JMAEKA: Journal of Accounting Economic Management, 2(1), 64–72.

Slamet, Prasetyo, B. P. W., & Azmala, I. (2022). The impact of electronic word of mouth and brand image on online purchase decisions moderated by price discount. European Journal of Business and Management Research, 7(2), 139–148.

Sugiyono. (2017). Metode penelitian kuantitatif, kualitatif, dan R&D. Alfabeta.

Sugiyono. (2018). Metode penelitian kuantitatif. Alfabeta.

Suhaily, L., & Darmoyo, S. (2017). Effect of product quality, perceived price, and brand image on purchase decision. Journal of Business Studies, 1(2), 179–194.

Ubay, N. N. (2023). The influence of digital marketing, brand image, and lifestyle on purchasing decisions in choosing coffee shops in Yogyakarta. SAMMAJIVA: Journal of Business and Management Research, 1(4).

Utomo, P., Zulfa, F. A. N., Fitriyah, & Sudarman, B. N. (2023). The influence of digital marketing and service quality on consumer preferences for coffee shops in Malang City. Civilization Journal of Economics and Business, 2(2), 190–206.

Wang, C., Liu, T., Zhu, Y., Wang, H., & Wang, X. (2023). The influence of consumer perception on purchase intention: Evidence from cross-border e-commerce platforms. Heliyon, 9(11), e21617. https://doi.org/10.1016/j.heliyon.2023.e21617

Wibisono, N., Senalasari, W., Elliott, M., & Februadi, A. (2023). E-WOM engagement and purchase intention on social commerce specialized in beauty products. International Journal of Applied Business Research, 5(1), 26–46. https://doi.org/10.35313/ijabr.v5i01.311

Zhao, Y., Liu, Y., Lai, I. K., Zhang, H., & Zhang, Y. (2016). The impacts of attitudes and engagement on electronic word of mouth (e-WOM). Technological Forecasting and Social Change, 2, 22. https://doi.org/10.3390/s16030391

Zheng, R., Li, Z., & Na, S. (2022). How customer engagement in live streaming affects purchase intention and customer acquisition. Journal of Retailing and Consumer Services, 68, 103015. https://doi.org/10.1016/j.jretconser.2022.103015

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Published

2026-01-02

How to Cite

Indah Dwi Lestari, Novita Fitri Yanti Seragih, Moh Reza Munandar, Firdaus Rofiansyah, & Rahmawati Rahmawati. (2026). The Effect of Customers Engagement and Electronic Word of Mouth n Purchase Decision Through Purchase Intention as a Mediation Variable: (Case Study on Tomoro Coffee). OPTIMAL Jurnal Ekonomi Dan Manajemen, 6(1), 166–184. https://doi.org/10.55606/optimal.v6i1.9295