Yes, loud and proud! My company is still running on-premise. It doesn't mean we don't do a some things on the cloud. It just means most of it is still on-premise.
The reasons are many and varied. But this is about our migration.
Right now we are on-hold. Why? Because year end is fast approaching. So I can state, We started with moving to 2022, BUT we may change that next year to 2023.
Without writing a blog - here are some of the "strange and unusual" things that we have found:
"BEX" queries - remember them? - we have moved to away except for one pesky one. It uses the writequery as a base. I found that one caused a lot of issues.
There were some "holes" in programs that weren't quite plugged. Good news! We are finding them. Bad news! It takes time to fix.
There are some changes to FIORI. So... we had to bring back the consulting firm to help with those.
PIDs were missing.
BUS2032 had things missing. So it needed me to look between system to fix.
Some filters needed fixed or enabled.
E-mail templates were not moved completely.
Take a look at your workflows. They seemed to change a bit. Some linkages I didn't expect and some that seemed missing.
APIs - just look at them all. Or at least all of your custom APIs.
So feel free to add more. Perhaps some day I'll write a complete blog. Keep in mind some of this might be because of strange things we did to the system. Never completely trust what you read. But some things to do a quick check on.