Estimated reading time: 5 minutes
If you’ve been following along for the past few weeks, you’re probably wondering where this is going. You know what a carve-out is. You know what makes them special. You know what the different business scenarios are. Why is this important? Well, all these pieces come together to determine which of the four technical approaches make the most sense for your organisation. Let’s jump right in.
As we see it at cbs, these four technical approaches come in two flavours: system clone and selective carve-outs. What’s the difference? System clones can be executed with standard SAP technology (basis or SAP LT), whereas selective carve-outs must be performed using specialised software such as the cbs ET Enterprise Transformer.
Option 1: Clone and Run
This is the simplest of approaches. It can usually be performed without external help with your in-house basis teams and consists of simply performing a full system copy and running with certain parts of the new system as described by the graphic.
This system copy includes all customising, repository, users, authorisations, and data. This option works well for internally driven carve-outs where the source system isn’t too large, as the hardware would need to be doubled in order to support the copied system.
Option 2: Clone and Delete
Like option one, you start by performing a full system copy. Again, hardware needs to be doubled up to support the full copy of your productive SAP environment.
The next step is to delete obsolete data from the target system using SAP LT or cbs ET tools. As opposed to option one, the result is a system that only includes the data in scope. However, this option is not ideal for customers with large databases. Due to additional hardware costs, licenses for SAP LT software can get expensive as they are based on database size (does not apply to cbs ET). There is also always a chance that not all data and/or customising is deleted correctly and ends up in the hands of a competitor.
Option 3: Selective Carve-Out in Empty Shell Copy
This is where it gets interesting. Unlike the first two options, this approach requires an empty shell copy instead of a full system copy. This shell only includes system configuration and customising without any data whatsoever. This has two advantages when compared to the earlier approaches:
- The target system does not require as much hardware as the source system due to this being just a “skeleton” copy.
- Confidential data that is not in scope will never touch the target system, ensuring no proprietary information exchanges hands.
The second step is to get a little more complex and require a standalone blog post to explain, but I’ll try to summarise as best as possible. Employing specialised software (standard SAP tools such as SAP LT are not capable of this), we set selection criteria to extract only the data in scope from the source system and import this into the target system. In this case, considering the target system is configured the same way the source system is, no mapping or data transformation is necessary. Selection criteria can be set based on different parameters such as company codes, plants, profit centres or cost centres, to name the most common ones used. This allows customers to surgically select particular subsets of data to ensure only the necessary data is handed over to the buying party.
Option 4: Selective Carve-Out in a new system
This is essentially the same as the shell copy approach, with the added caveat that the target system is different from the source. This could be a separate release, or a system configured differently (i.e. a shell copy of the buying party’s SAP environment, for example) or an SAP S/4HANA system.
The steps are almost the same as above. The only difference is that after extracting data from the source, it needs to be mapped and transformed into the target system structures. This mapping and transformation are software-driven and automated, with robust validation features that guarantee data quality and consistency. These last two options lay the foundation for Selective Data Transition to SAP S/4HANA.
Depending on what type of carve-out your organisation is facing, and after answering some of the questions laid out in our first blog post, it becomes clear which one of the options above makes the most sense. Our software ET Enterprise Transformer has extensive analysis functionality to help determine the best way forward. Call us today to schedule a free consultation.