Does Marketo auto trim imported lists?

[Anonymous]

I noticed something very odd happening with my (non) smart lists when I import a CSV. I started with ~18k rows in a CSV, and after I imported this into a non-smart list the number of leads I get in Marketo is correct. After a few min I checked back at the list and now it's suddenly ~17k leads, then after about 5min it's down to ~14k. Does anyone know what's causing this? Is Marketo automatically trimming the list for some unknown reason? If it is, what leads are getting trimmed?

Thanks.

[Dory_Viscoglio · Accepted solution]

This is strange for imported leads to be removed from a list that you've created. A couple of ideas... There would need to be a smart campaign removing them, or something is happening maybe within your CRM.

• Do you have anything running for duplicate removal?
• Have you tried running a smart list "was added to/removed from YOUR LIST" and then looked at the activity logs to see if there was a smart campaign removing them from the list?

[Anonymous]

Hi Dory

I created a smart list to check for "was removed from list" but found none.

I didn't run anything for duplicate removal myself but it could be automatic, or set up by a colleague. How would I check if something like that is running in the background?

Thanks.

[Grégoire_Miche2]

Hi Kevin,

That would show in the campaign queue, likely, since it does not seem to be that immediate.

-Greg

[Anonymous]

I didn't see anything in the campaign queue, but upon re-importing the same .CSV, the problem is now solved. Not sure what was causing the auto-trim earlier though.

Thanks.

[Dory_Viscoglio]

It likely wouldn't be in Marketo.. maybe in your CRM? But the list shouldn't get smaller on its own based on anything that Marketo is doing natively.