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3139718 - Error: may only contain upper case letters


The following error appears:

User name '<username>' may only contain upper case letters, numbers, or '_','.','-'

(where the username is email address which contains a '@' character) during:

  • Employee data replication
  • Logon in IBP 
  • Import an employee using app Import Employees (App-ID: F2323)
  • Data replication from Successfactor (EC Employee Central) to S/4HANA



  • S/4HANA
  • S/4HANA Cloud 


SAP S/4HANA Cloud all versions ; SAP S/4HANA all versions


KBA , CA-GTF-BUM , Business User Management , CA-HR-S4 , Cross-Application HCM Objects in S/4HANA , BC-SRV-APS-IAM , Identity and Access Management , CA-WFD-INT , S/4HANA Cloud Workforce Domain Integration , Problem

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