Hi SAP Community,
In bid to cheque and implicit the customizing for SZ, you tin travel the PowerPoint illustration successful the roadmap below:
Configure Customer Specific Fiscal Year Variant (Optional)
Furthermore, you tin besides notation to KBAs beneath for further resources:
2640035 - Guidance for deviating shifted Fiscal Year Variant successful SAP S/4 HANA Cloud - thin solution for further alternate Fiscal Year Variants
3301066 - AA613 Period determination is not imaginable connected day &2 for play power &1 S/4HANA CLOUD
Best Regards,
SAP Support