Bulk request or sequential request

Q)If I want to get updated data for one customer, do I need to send 10 individual data pulling requests or it would be a bulk request of all IDs?

Hi @demoprod
To make a synchronization you need to send one request per credential, If the user has 10 credentials then its needed to send 10 data pulling requests. Then when you have done the synchronization you can get the transactions for that credentials.