Error while Salesforce Sync

[S_D1]

Hi,

I have executed an email program last week for half the database and synced the email program with Salesforce.

I am executing the same email program for another half of the database but would like to sync with the same Salesforce program( avoiding to create second salesforce campaign)

I am getting the following error message

What is the issue? can  we not sync 2 similar email program to 1 salesforce campaign?

[SanfordWhiteman]

I urge you to take a moment to think about how bad that would be if it were possible.

[Grégoire_Miche2]

[Grégoire_Miche2]

Remember the sync is 2-way. You would create a serious mess in Marketo if this was possible.

Better use a regular program, rather than an email one.

-Greg