Name the process owners
Each important journey needs a business owner: sales to invoice, purchase to receipt, returns and stock adjustment. Ask those owners to validate complete transactions rather than isolated screens.
Test the exceptions
Include cancelled orders, partial receipts, missing master data and refunds. Use realistic permissions. Record the expected and actual results so release decisions rely on evidence rather than memory.
Prepare for the first working day
Confirm access, provide short role-specific instructions and explain how to request help. State which system becomes authoritative and when the previous process stops. Document any temporary workaround and who owns its removal.
Make the release decision explicit
Identify who authorises launch, which checks must pass and when the team must stop or roll back. Define how early issues will be triaged and when ongoing support takes ownership.
Bring it to your next workshop
Choose one workflow, bring a representative data sample and involve the person who owns the business outcome.