The shift to service and gig economy and increasing polymediality have created communicative contexts where the workers have to construct varying social relations in different kinds of digital and text-based interaction environments. This article examines how transprofessional collaboration is managed in such contexts in the field of applied arts. Based on email and mobile messaging data, we study a project where an artist creates an installation artwork for the use of an organisation. By applying the methods of conversation analysis, we investigate text-based requests and news delivery sequences related to applying for external project funding. Our results show how the participants negotiate the aspects of knowledge, power and emotion within these sequences, and by doing so, maintain mutual professional relationships and display various levels of commitment to the continuation of the project. The article illuminates the facets of transprofessional collaboration in digital professional communication and in atypical work.