Interface questions

I'm new, so can anyone please help me with the following interfaces:

1. Receipt confirmation interface to notify the client that the goods were received into the warehouse

2. An inbound interface to create the sales orders

3. An outbound interfaces to send Invoice and Shipping notifications to the customer

My basic questions are:

1. What are the transactions for each interface to trigger?

2. What are the standard IDOC types which can be used for these interfaces?

3. What are the configuration steps needed for these interfaces?

Thank you, any help is really appreciated..

Uma.