3423305 - Data Validation: "The User Name you provided is not valid. Please use the following character types: ['a' to 'z', 'A' to 'Z', '0' to '9', '-', '_', '.', '@']." - Onboarding

• When the Onboarding process is initiated via Recruiting, the candidate is not visible in the Onboarding Dashboard.
• In the To-Do panel > Business Process, it gives the error:
  
  Create External User (1)
  Data Validation.
  [Error Code: 7]The User Name you provided is not valid. Please use the following character types: [’a’ to ‘z’, ‘A’ to ‘Z’, ‘0’ to ‘9‘, ‘-‘, ‘_‘, ‘.‘, ‘@’].

SAP SuccessFactors Onboarding

Onboarding, Onboarding 2.0, LOD-SF-OBX, OBX, Recruiting, Email Address, Data Validation, Validation Error, The User Name you provided is not valid. Please use the following character types: [’a’ to ‘z’, ‘A’ to ‘Z’, ‘0’ to ‘9‘, ‘-‘, ‘_‘, ‘.‘, ‘@’]., Candidate not visible, Onboarding Dashboard , KBA , LOD-SF-OBX-RCM , Initiate onboarding from RCM , How To