Use a CPRA workflow that captures threshold status, data categories, consumer rights, opt-out signals, vendor role, retention logic, risk/cyber/ADMT trigger, owner, and review date.
For GPC specifically, the workflow should detect the signal, map it to sale or sharing opt-out handling, update the website privacy choices link where required, and keep a dated record showing when the signal was honored. The output should be a threshold memo, notice update, DSAR workflow, opt-out/GPC implementation record, vendor clause map, risk-assessment intake, or audit evidence pack.