Symptom
In SAP S/4HANA Cloud Public Edition, the User Name field for Business Users has a fixed character length restriction.
This field includes but is not limited to the field maintained when creating a Worker in the Manage Workforce app, or the field maintained in the Maintain Business Users app.
Environment
SAP S/4HANA Cloud Public Edition
Resolution
When creating or maintaining Business Users, ensure the User Name field does not exceed 40 characters, including all spaces.
Keywords
user name field, character length limitation, sso validation error, business user login error, s4hana cloud public edition, user name field maximum length, 40 characters limit, s4hana user name field, validation issue, business user management , KBA , CA-GTF-BUM , Business User Management , BC-SRV-APS-IAM , Identity and Access Management , CA-WFD-INT , S/4HANA Cloud Workforce Domain Integration , Problem
SAP Knowledge Base Article - Public