I am the head of Programmes and Projects for a SME and I have implemented Project for the Web and the Project Accelerator to great effect across my organisation. A client has asked us to implement for them however, due to the complexity of their organisation they have multiple, separate "organisations" under a single tenant (not for discussion here ). Due to this segregation, We have had to install a dedicated instance of Project for the Web and the Accelerator in a dedicated Power App environment (Not Default).
The issue we now have is that we cannot integrate Project for the Web with Teams Channels and by extension, implement tasks directly to Engineering Team Planners. While the accelerator continues to provide great project and reporting solution, the lack of integration with Teams seriously reduces its effectiveness as a collaboration tool. Research to date indicates that only Project for the Web installed in the default instance (not best practice) will integrate with Microsoft teams.
I post this out of hope than expectation however, can anybody out there in the community advise whether they have successfully resolved this challenge?