Article 17 requires erasure without undue delay where one of its grounds applies, including where the data is no longer necessary for the original purpose, consent is withdrawn with no other legal ground, the data subject successfully objects, the data was unlawfully processed, erasure is required by Union or Member State law, or the data was collected from a child in relation to information society services.
The schedule should also preserve the Article 17(3) exceptions as decision fields, not as blanket excuses. If continued processing is necessary for a legal obligation, public-interest task, public-health reason, protected archiving or research purpose, or legal claims, record the exact basis, the data categories retained, and the restricted use that remains allowed.