A PIP claim may involve contact with the DWP and a health assessment, but it does not normally require a Jobcentre work-search appointment. If you also receive Universal Credit or another benefit, the appointment may relate to that separate claim, so check the letter or message carefully. Contact the Jobcentre or the number on the appointment notice as soon as possible if you cannot attend, explain why and ask whether it can be rearranged or reasonable adjustments can be made. You can check the latest guidance on GOV.UK.