Changing Destination on FMC During Dlight

[depechemode 0]

Hello, I am having trouble succesfully changing my flight destination on the FMC from one airport to another during the flight. For example, if I am flying from EDDF to EGLL and decide to divert to EHAM, I simply go to the "RTE" page on the FMC and set the "Origin" to "EDDF" and set the "DEST" to "EHAM". However, the autopilot will fly me back to EDDF instead of continuing to the new destination. Am I doing somewthing wrong? I would be grateful for any assistance or any pointers to the right direction.

Thanks!

[Ian 0]

I have the same issue, I think it is because the original airport is the first waypoint and as you haven't reached it the autopilot keeps trying to fly to that point first before the next waypoint, there is no direct to function.