To set the Member LU Rules - In Mem Process Cut-off, go to Setup | Search | Custom Metadata Types.
Label: Q-assign Customer Settings
Plural Label: Q-assign Customer Settings
Object Name: Qassign_Customer_Settings
Object Name will be automatically generated with __mdt at the end i.e. Qassign_Customer_Settings__mdt
Click Save

Data Type: Text
Length: 255 Characters
Field Name: Value
Click Save

Label: Member LU Rules - In Mem Process Cut-off
Qassign Customer Settings Name: Member_LU_Rules_In_Mem_Process_Cut_off
Value: a suitable value (<1000) suggested by the support team after analyzing the configuration
Click Save

Please contact us at support@ortooapps.com for any questions.