Entering or Changing a Vendor Evaluation Manually 
Entering or Changing a Vendor Evaluation Manually
A re-evaluation of a vendor usually results in a change in the vendor’s scores.
There are also cases when you will want to manually correct individual scores calculated by the system.
In certain cases you might want to enter scores manually before carrying out an evaluation.
Prerequisites
You must obtain certain authorizations and the score fields must be ready to accept input before you can enter scores directly or overwrite scores calculated by the system. Authorizations and field attributes are determined in Customizing.
Suppose your main materials vendor had delivery problems during the last six months.
Since you could not procure the material from another vendor on a short term basis, you said that the vendor could deliver ordered materials in seven weeks instead of the usual three.
The vendor was able to keep to these new delivery dates exactly. He thus receives 93 out of 100 points for the automatic subcriterion "On-Time Delivery Performance" and a very good score for the main criterion "Delivery".
However, you do not want the vendor in effect to be rewarded by a good score for considerably exceeding the original delivery period. So you overwrite the score for the main criterion "Delivery" with a lower score.