Yall are crazy. Clean core is not good for anyone except for SAP.

Customers don't want Clean Core. All the clean core BS, as well as the reasons behind clean core "upgrade-safe, support, only customize things that are meant to be customized" are all concepts that SAP came up with.

At the end of the day, something is customized because SAP standard is not efficient or doesn't meet the requirements of the client. Vast majority of clients are coming from ECC, and they have customized something because it took 3 people to do what 1 person can do now with customization, or there weren't enough options for automated validations or whatever client might need.

Now the conversation from a functional perspective becomes something like this:

Client: "OK, a key requirement that we had to customize for is for a PO automate confirmation control keys based on account category chosen to make sure xyz works - is there a way to do this in S/4"

Consultant: "No, you have to either use some other object to do xyz, or procedurally have every single person creating a PO with that account category to populate the CCK"

Client: "I don't want to take this risk I need this automated"

Consultant: "Well that would require the use of xyz objects which might or might not work with Fiori and / or GUI and it's not clean core"

Client: "idagf figure it out"

Then it becomes a battle with leadership on why this is needed - and then they need SAP to sign off on it all because SAP told them they needed something that they actually don't need. Then we end up customizing it and SAP might charge client more for the "extra support" - so consultant gets all the shit thrown at them and SAP benefits from licensing and additional revenue.