In this descriptive study, the use of a professional e-communication tool, Congredi, is evaluated. Ninety-six Congredi records of patients with dementia could be divided into the subgroups low-complex care (n = 43) and high-complex care (n = 53). If Congredi is an adequate communication tool for professionals, the changing involvement of caregivers must also be reflected within the two subgroups. We hypothesized that use would be more intensive in the high-complex group in comparison with the low-complex group. Data were gathered during 42 weeks. Results showed that the mean number of care activities in the high-complex group was significantly higher than in the low-complex group (10.43 vs 5.61, P = .001). The number of professionals involved with the high-complex care group (3.58) was higher compared to the low-complex care group (2.51) (P = .000). The most frequent use was by case managers and nurses (43.4%) in the high-complex group and by several case managers (41.9%) in the low-complex group. It was concluded that professionals used Congredi adequately in the multidisciplinary care of patients with dementia because the changing involvement of caregivers and the level of care activities were reflected in the use of Congredi.