Last Monday Night Raw saw Triple H and Stephanie McMahon missing from all the action as they were on a private tropical vacation with no cell reception. As noted back in October 2014, Stephanie was selected as a 2015 Eisenhower Fellow with 8 other executives from around the world. So it might be possible that she could be off from the WWE TV for about a month.
The MNP program which commenced from April 5th required the Eisenhower Fellows to go on a four to five week tour visiting the countries which they had selected from a list provided to them. There were around 42 potential destinations including Australia, India, Nigeria, Bangladesh and others. Though we are not certain that Stephanie McMahon is on tour for this MNP program but it seems that the above report is true as Dave Meltzer noted on Wrestling Observer Radio that the MNP program was scheduled to begin from April 5th so the dates do match up.
Check out the promo of WWE Fit Series DVD which features Stephanie McMahon.