3163466 - Error "Object is not in customer namespace" occurs when creating local Chart of Accounts - SAP S/4HANA Cloud Public Edition

When creating alternative Chart of Accounts in the configuration activity SSCUI 102422 - Edit Chart of Accounts list, the system returns the error "Object is not in customer namespace".

SAP S/4HANA Cloud Public Edition

1. Open SSCUI 102422 - Edit Chart of Accounts List, New Entries for Italian Chart of Accounts, name as "YCIT ".
2. Click Save, the system returns the error "Object is not in customer namespace".

Entry "YCIT" cannot be created via SSCUI 102422 as the entry is in SAP namespace. 

SAP namespace:
S*, Q* R* P*, X*, Y* for alphanumerical keys
0*, 5* 6* 7*, 8*, 9* for numerical keys

Use another name that is not in SAP namespace.

How to Create an Alternative Chart of Accounts

An alternative CoA is available for the following countries/regions:see Content

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SRAL 322, Object is not in customer namespace, Chart of Accounts, Namespace restrictions, SSCUI 100146, SSCUI 102804, SSCUI 102422 , KBA , FI-FIO-GL-MD , Master Data Apps , FI-FIO-GL-MD-2CL , Master Data Apps (Public Cloud) , How To