Thank you for sharing the config document. After reviewing it, I'd like to point out that the topics you have mentioned are not a complete HR Config. You have included OM, PA, Time, Recruitment, and Payroll modules. However, there are other topics that seem to be missing:
1. Recruitment is no longer used in SAP HCM; it's now e-recruitment.
2. There is no mention of ESS/MSS services.
3. Talent management topics such as ECM, Performance management, succession management, etc.
4. Learning solutions.
5. Travel management, which could potentially be integrated with the finance module.
Please correct me if I am mistaken. I hope this feedback helps.