We have vendors with variable delivery lead times (for instance, if we send  
  
an order on Monday we receive on Tuesday, but if we send the order on  
  
Wednesday we receive on Friday), so we can't use the field 'days' in the  
  
trade agreements because it is not a fix number.  
  
For that we would need a calendar for delivery date (days that vendor send  
  
the goods) and another calendar for order day (days in which we send the  
  
order to the vendor). I think that the second calendar already exists on the  
  
vendor card, but the first one doesn't exist.  
  
Does any solution exist to solve this in the standard parameterization? I'll  
  
be very grateful for any suggestion.  
  
Thanks in advance