Suddenly change lead source

[Anonymous]

Hi Marketo Community!

We are holding an event, and everytime a lead register for the event, the lead source change from null to the event name, and that is fine, so we can see why they became a lead. But for some reason the minute after the lead source changes to another value and don't know why. See picture # 1



We don't want it to change to "LLL Website" . I double clicked on the specific action where it changes to another lead source:





Can someone help here? 







 

[Kim_Allen]

In admin - under field management - you want to make sure you have your lead source field block updates from those types of sources - web services, list loads, etc. This way it keeps the original source and won't overwrite it.

[Anonymous]

but it seems, that it happens right away