If you do not use a concept in Invoicing, to improve performance, disable the concept.
Monthly billing invoices
Group Company Parameters (tfgld0101s000)
ACR Parameters (tfacr0100s000)
Monthly Billing Invoices
Generate MBI at Group Company
Number Group
Default Series
Invoices and receipts by shipment
CMG Parameters (tfcmg0100s000)
Receipts Against Shipments
Log Intrastat for manual sales
Sales Invoicing Parameters (cisli0100m000)
Log Intrastat for Manual Sales