Working with SAP Notes 
If you want to use Note Assistant to correct an error in the program, proceed as follows:
You know the number of the SAP Note that contains the correction for the error in question.
You have created an RFC connection (for downloading SAP Notes).
You have informed Note Assistant of any manually implemented SAP Notes. (See also: Registering Manually Implemented SAP Notes )
Load the SAP Note into your system.
When you do this, Note Assistant checks whether the validities that are specified in the SAP Note (software component, release version, and Support Package level) correspond with those in the system. Note Assistant indicates whether the corrections can be implemented.
Note
Only SAP notes that contain corrections to certain ABAP Workbench repository objects can be implemented. For more information, see Technical Details on Correction Instructions.
Read the SAP Note description thoroughly.
Caution
The Note description may contain prerequisites, interactions, and references to postprocessing activities (making changes to a table, for example) that are not automatically recognized by the Note Assistant. If you do not take this information into consideration, fatal errors may occur. It is therefore essential to read the SAP Note before implementing it.
Decide whether the SAP Note is relevant for you. Classify the SAP Note according to the processing status.
Implement the corrections.
Perform any post-implementation steps that are specified in the SAP Note.
Test whether the error has been corrected.
Set the processing status to Completed.
Release the transport request and import the corrections into the follow-up systems in your system landscape.