What to change
A domain move crosses account and supplier boundaries, so one person needs authority to judge the combined result. Ask each supplier to name their dependency and expected handover evidence, then run the complete external entry route after both changes. The release record should show who can act if that path fails. Separate task completion is useful, but it cannot replace a successful end-to-end incoming visit.
A worked example
Illustrative example
Illustrative test: Follow an external old-domain deep link into the new resource library.
How to check the result
The full path succeeds and one release record contains both suppliers' evidence.
A mistake to avoid
Separate completion emails can conceal a broken boundary between systems.
Your action checklist
Use these checks to prepare a discussion with your team or supplier. Tick a check when you have recorded the decision or evidence, rather than when a feature has simply been promised.
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Further reading
These primary sources provide additional context for the project decisions above.
Related decisions
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