Vendor Evaluation- Confirmation date Adherence

Hi Team

In vendor evolution I am using Delivery as my main criteria and Confirmation date Adherence as sub criteria and assigned weighting 1 . I have also entered the % and scoring both positive and negative. But when I am using T code ME61 system is showing scoring 0 for Confirmation date Adherence.

I have tried all option Confirmation date change in PO and GR still I am not able to see scoring in Tcode ME63. All other criteria is showing correctly, please let me know if I am missing any important step.

Thanks

Sanjay