Perform bulk import should update but not create if lookupField=id ?

[Willem_Labuscha]

Hi

I am testing my code in small batches on Marketo Sandbox but have a problem. I see that new records are created from my CSV data. I only want to update.

Quote from The Marketo docs .

"You can specify id as lookupField to indicate an “update only” operation. "

Marketo bulk import should not create new records if you specify id as a lookupField. I am using `/bulk/v1/leads.json?format=csv&lookupField=id"`

If I look at the data new leads/persons with with a fake Id and fake email  test@example.com​ was created in the Sandbox env.

[SanfordWhiteman]

I answered this during the last week on the Community -- search my posts.

[Willem_Labuscha]

Sanford, can you be more specific? I did not find it. You are a prolific content producer. 🙂