ESS/MSS - Absences created directly in IT2001
I need advice if absence are created directly in ECC Infotype 2001,is there any technical limitations that it will not be displayed on ESS/MSS team calender or Absence Overview ??
Does this means,in ESS/MSS portal,i will be able to see only those absence record which are created and requested on ESS/MSS portal ?
Please help me to understand this concept.