Six things a project handover should include

Set up the code repository, store accounts, servers and domains under the client organization at the start.

1. Code repository and history
2. Admin roles
3. Deployment accounts
4. Data and operations documentation
5. Handover session
6. CoUI source license

Write down the reason behind decisions so the next team can change a setting without retracing the same investigation.

Ask the receiving team to deploy once. Missing permissions and undocumented steps become visible immediately.