从S/4HANA升级到S/4HANA2020升级的真实经历
这是一张来之（SAP S/4HANA Conversion and SAP System Upgrade）PA教材（1909版）上的图：
M:13661767749
2021-02-23 安装数据库hana2.0SP3
2021-02-25 21:53 preparations
2021-02-25 22:03 system copy
2021-02-26 00:36 MP to upgrade s42020
2021-02-26 17:58 upgrade HANA DB
YWk
M:13661767749
2021-02-26 23:28 升级SAP
2021-02-27 10:28 配置SIC
https://launchpad.support.sap.com/#sic
奎哥说：Tcode SA38 => /SDF/RC_START_CHECK
2021-02-28 10:28 y继续安装
Result：
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