What is the role of reviewed manual effort and cost values in the ROI activation process?
ROI Activation feature makes the ROI usability feasible and enables you to activate the ROI at any point of time as per your preference and convenience.
For ensuring correct ROI data is generated, you must review the manual effort saving and cost values before activating ROI.
You can refer the below knowledge base links for more info - ROI Activation
Before activating ROI, you need to confirm that the manual inputs of effort and cost saving are correct.
Also refer this section - Configuration.