This study evaluates the acceptance of an e-catalog application system for construction service
procurement in government using the Unified Theory of Acceptance and Use of Technology (UTAUT)
model. The use of e-catalogs in procurement offers substantial benefits, including increased transparency,
efficiency, and accountability. This research aims to identify factors influencing user acceptance of e-
catalogs through an explanatory quantitative approach. This research uses an explanatory quantitative
method, A sample of 100 respondents was selected using accidental sampling, and data were gathered
through questionnaires, analyzed via Partial Least Square (PLS) to evaluate relationships between variables.
Findings reveal that Effort Expectancy, Facilitating Conditions, and Habit significantly impact Use
Behavior, while Behavioral Intention is influenced by Facilitating Conditions and Effort Expectancy.
Meanwhile, Performance Expectancy, Social Influence, Hedonic Motivation, and Price Value show no
significant impact on Behavioral Intention or Use Behavior. The conclusions indicate that ease of use and
environmental support are key factors in promoting e-catalog usage.
Keywords: E-Catalog Application; Procurement; UTAUT