This article is to provide technical difference between Perform assessment and perform measurement SAP- Treasury. For configuration please refer help.sap.com articles
The accounting principle IAS 39 and FAS 133 require effectiveness tests to be carried out for the hedging relationship.
We may wonder what the difference between the two effectiveness because they are very similar in context of meaning. If you closely look both calculate effectiveness using same method.
Perform assessment (above screenshot) provides just a information on the whether a hedging relationship is effective or not, on the other hand perform measurement (below screenshot) provide information on the posting specific effectiveness result whether test is effective or not.
The system does not save the detail logs of the retrospective effectiveness assessment and the effectiveness measurement when you use the key date valuation and generate derived business transactions. Please implement this SAP note: 1014939