Agree responsibility before configuration begins
The strongest projects make responsibilities visible. The customer owns business decisions and source-data quality; the implementation team owns agreed technical and configuration deliverables; acceptance criteria define when a workflow is ready.
Write down what each side owns
Support after go-live should focus on adoption, issue resolution, controlled changes and keeping the system useful as the organization evolves.
Before commitment: This website explains the approach. The accepted project documents define infrastructure ownership, service levels, security requirements, migration depth, integrations, support and acceptance criteria.
