Dos and Don'ts: Technical upgrade considerations
Don’t: Assume that your custom code and interfaces will work in ERP 6.0, even if they were built using established user exits. They will not.
Do: Test all used custom code and third-party interfaces in a sandbox environment or (better) with an upgrade simulation software that can save you a lot of time.
Bonus: Seize the opportunity to reduce redundant (or no-longer-relevant) custom objects during the upgrade process. You can even start cleaning your code well before the upgrade.
Customer Lesson: Agilent began their SAP upgrade with 14,000 customized objects. After the upgrade, they were able to reduce that number to 7,000.
Dos and Don'ts: Upgrade Skills and Training
Don’t: Cross your fingers and hope that a bit of internal training will be sufficient for those IT staffers in lead roles for the upgrade.
Do: Bring in outstanding consultants in specialized areas that are integral to your SAP upgrade.
Customer Lesson: Kraft Foods supplemented their internal team with "All Stars" in key areas tied to the success of their upgrade, such as: Netweaver technical, Unicode conversion, new GL configuration, and BI upgrades.
Don’t: Assign responsibility for change management and upgrade training to the IT department.
Do: Create an internal change management and training team, one that has a reasonable budget as well as executive involvement and buy-in.