Hi,
How and why your system allow service received 150 units when service order is created with service activity qty 100 units?
Better create service order with service activity qty 100 units and go for service received 100 units(ML81N)- Finally go for invoice of 100 units.
OR
Create service order with service activity qty 150 units and go for service received 150 units(ML81N)- Finally go for invoice of 150 units.
OR
Create service order with service activity qty100 units( 1st line) and 50 units( 2nd line)- Item Overview
Go for service received 100 units(ML81N) and 50 units(ML81N) separately
Finally go for invoice of 100 units & 50 units.
Regards,
Biju K