Question

Does FlexiCapture 12 support Group Managed Service Accounts (gMSA)?

Answer

FlexiCapture requires using Windows authentication for communication of server components. IIS can use Windows authentication provided by NTLM or Kerberos or any other provider. 

While the support of Group Managed Service Accounts is not specifically declared, as it has not been officially tested, FlexiCapture should be functional within such environments.