Way 1 :
In Purchase app , Works -> WO/Code Nos. -> Right click -> Add Service Order .
**Way 2: **
In Purchase app->Vouchers->Service Order->New
Service Order form open like this.
Fill the details and save it.
Click on Vouchers -> Service Order -> List All.
From purchase app , right click -> Edit Service Order.
Right click -> View Order.
Please check your uploaded file extension.
Please Select a file.