If this check box is selected, it means that sales lines should preferably be invoiced using the periodic invoicing process. Do not select this check box if you do not want to use periodic invoicing for these sales lines.

The default setting for periodic invoicing is filled in automatically based on the sales type specified. The value of this field will be used as the default value for sales lines. You can still modify this field both here and on the sales line.

Select 'Yes' if you prefer to use the cost-plus invoicing process for the sales lines. The default setting for cost-plus invoicing is filled in automatically based on the sales type specified. The value of this field will be used as the default value for sales lines. You can still modify this field both here and on the sales line.

The default setting for the cost-plus invoicing type is filled in automatically based on the sales type specified. The value of this field will be used as the default value for sales lines. You can still modify this field both here and on the sales line.