How would you describe the explore phase in the "new implementation Of SAP S/4HANA cloud" transition path?

What are the responsibilities of the Product Owner in release and sprint planning?
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What tool provides sizing estimators for the "system conversion" transition path?

Which artifacts are created within Application Design and Configuration work stream in the Explore phase of the "New Implementation of SAP S/4HANA" transition path?
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Response:

Which accelerator can help you document the detailed design of solution extensions?
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Response: