For buyers contracting authority
Pick 72222200 when the deliverable is a plan for information systems, not the systems themselves. A contracting authority uses it to procure an IT roadmap, a target-architecture design, a modernisation or migration plan, or the structured analysis that sets up a larger programme. The accepted output is the plan, the design, or the recommendation that gets signed off and paid for.
The boundary that trips contracting authorities is the strategic-review sibling 72222100. Strategic review assesses what exists and whether it still serves the organisation; planning lays out what to do next and in what order. Many contracts blend both, so tag the primary CPV code by whichever the statement of work leads with.
The other neighbour is the IT-services sibling 72222300, which is the right pick when the contract delivers running services rather than a planning document. Where a single engagement folds planning into a larger delivery, set the primary code by the dominant deliverable, not by the whole bundle.