However, there might be several issues that cause the error, such as: The problem related to We could not complete your purchase error is currently under investigation. In most of the reports, people claim that they are not able to download updates for apps that are already installed on the system. According to reports, people cannot finish their purchases on the App Store as the mentioned error occurs at the final stage and indicates that the process is canceled. Nevertheless, the need for We could not complete your purchase error fixes resurfaced in 2020 when Mac users started actively updating from Catalina 10.15 to Mojave 10.14.
At the time, the error seemed to be bound to the macOS Catalina and stem due to iCloud account problems on Mac App Store. “We could not complete your purchase” is one of Mac App Store errors that have been bothering Mac OS users since 2017. To repair damaged system, you have to purchase the licensed version of Mac Washing Machine X9 Mac Washing Machine X9.
