Field help (MINAMTNOT) 

This field can only be accessed when the schedule is of the Fixed percentage type.
You can enter a minimum scheduled invoice amount. If the calculated scheduled invoice is lower than this minimum amount, it will be automatically grouped with the next scheduled invoice and their amounts added.
SEEINFO You cannot enter a minimum amount on all scheduled invoices. This field must be blank on at least one line.

For example :
Scheduled invoice start date: 05/02/2016

Percentage 

Minimum amount

Number of months

Number of days

End of month

 50

 

 0

 0

 No

 40

 50.00

 1

 0

 No

 10

 

 2

 0

 No