The purpose of this study is to identify in which stage/stages of the Process Writing Approach students have difficulties most. This posttest-experimental study was applied to the 50 first-year students studying English Translation and Interpreting. The students were expected to produce an essay with the help of the Process Writing Approach at the end of the procedure. Their essays were assessed with a checklist prepared by the researcher according to the steps of the approach. At the end of the analysis, it is found that the students have success in the application of the approach in their writing class. Furthermore, it is seen that the students have difficulties in the application of the second stage, drafting, of the approach. The Process Writing Approach is a difficult and time-consuming approach in writing. It is found in this study that drafting and revising are problematic stages for undergraduate students. Thus, it is thought that it will be better for teachers to warn students to prepare enough before the production stage. Also, having separate lectures on the organization of paragraphs before the application of the approach will be useful for students.