I have a process that i need to send a email message to almost 2 million records, but i have to update a campaign at Salesforce Sales Cloud too.
One month ago i need to did this too and i did trough Journey Builder (membercampaign activity) and i noticed that the API Calls worked with almost 100% in my stack. So now i want to use the AMPScript (CreateSalesforceObject) to do this like i can not use the Data Loader.
Will present the same 'problem'?