Terms of Payment day limit range across month

Hello all,

hope you have a nice day.

I have encountered a requirement similiar to this question, which has not been fully answered in my opinion: http://scn.sap.com/thread/751003

Like the OP of the old thread, I need payment terms that go across months. Scheme where "N" means current month:

Where "Document Date" = 05.N to 19.N

=> "Due Date" = 10.N+3

Where "Document Date" = 20.N to 04.N+1

=> "Due Date" = 25.N+3

My two attempts so far:

1. Setting three terms of payment with the same name:

1. First Term:
   • "Day Limit" = 4
   • "Fixed Date" = 25
   • "Additional Months" = 3
2. Second Term:
   • "Day Limit" = 19
   • "Fixed Date" = 10
   • "Additional Months" = 3
3. Third Term
   • "Day Limit" = 31
   • "Fixed Date" = 25
   • "Additional Months" = 3

2. The same set of terms except the third has no Day Limit, so I would think it will be set as default:

1. First Term:
   • "Day Limit" = 4
   • "Fixed Date" = 25
   • "Additional Months" = 3
2. Second Term:
   • "Day Limit" = 19
   • "Fixed Date" = 10
   • "Additional Months" = 3
3. Third Term:
   • No "Day Limit"
   • "Fixed Date" = 25
   • "Additional Months"

Is this even possible? I hope you could understand me.

Best Regards