We are planning to do daily integration runs to salesforce using informatica from an external system. The volume of records are expected to be between 50,000 to 300,000 and this will be done on contacts and a bunch of related custom objects. Here are my questions.
Will every insert or update on a custom object will be counted as an api request or if we use a bulk upload with a batch size of 5000 , will this be counted as 1 api request?
Is there any documentation on how does salesforce calculate api requests from external applications like informatica data loads, outlook etc?
How do we plan such a way so that we can avoid api limits exceeded in 24 hours?