When using Get-QADMember or Set-QADMember PowerShell cmdlets and working directly with Active Roles, the following error may occur when the group contains more than 1500 members or the update is for more than 1500 members:
Request to change a multi-valued attribute has failed: attempted to add or remove too many attribute values. Not more than 1500 values can be added or removed from a multi-valued attribute within a single request.
Active Roles has this limit set to prevent Active Roles clients from throttling network bandwidth.
Follow the steps below to increase the limit but keep in mind this may impact network performance.