You are performing an SAP S/4HANA conversion. Which phases are executed during SUM technical downtime? Note: There are 2 correct answers to this question

Which steps should be performed during the adjustment of dictionary objects (SPDD) in the development system, before SUM continues?
There are 2 correct answers to this question.
Response:

You want to perform custom code check via ABAP test cockpit in preparation of your SAP S/4HANA conversion? What kind of SAP System can you use to generate the custom code migration worklist?

You are performing an S/4HANA conversion of the development system. Which credentials do you use in which system to perform the adjustment of dictionary objects (SPDD)?
Please choose the correct answer.
Response:

Regarding an SAP Upgrade, What does the major SAP Note for the version of SUM you are using usually contain?