The issue is solved.
When customer access Cloud system, they get below error and can’t access the system:
404 Not Found - You did not enter a valid URL
SAP S/4HANA Cloud
The IAS tenants URL was changed:
OLD URL: https://<Tenant ID>.accounts.ondemand.com
NEW URL: https://<Tenant ID>.accounts.sapcloud.cn
Since the latest URL is not loaded into the metadata, when accessing Cloud system, it will redirect to the not valid URL, so 404 error happens.
The metadata needs to be refreshed by operation team.
Please report an incident to operation team (Component XX-S4C-OPR-INC)
The issue is fixed now.
404 not found, valid URL, IAS , KBA , XX-S4C-OPR-INC , S/4HANA Cloud Availability, Performance and Administration , BC-IAM-IDS , Identity Authentication Service , Problem