Develop Bi connecting through multiple sources

Develop a BI and a Dashboard connecting through series of different platforms (like Meu Dinheiro, our own software and our accounting ERP) concatanating all data to a Google Looker Studio, and present a completa range of Dashboards.
Ideally we would have a the project development first, validated and approved, and then moving to coding and API settings, and make the magic happen.