I have created two additional custom fields for Start Date (Field API: Start_Date__c) and End Date (Field API: End_Date__c) to act as a replacement to the SVMXC Start and End Date. The reason is to avoid the SVMXC Validation rule of making the End date greater than the Start Date as we are calculating the End Date based on the duration of the Contract rather than inserting a date (i.e. End Date = Start Date + Duration of Contract).
One thing I noticed after creating these custom fields is that I can not reference them in the SFM Transaction Screen Designer, simply only SVMXC Start and End dates are available.
Have you come across this before? any solution to it?