Integration to Call other integrations - require similar to fnd_request.wait_for_request

Content

I have 5 separate OIC Integrations:

1. Import Suppliers

2. Supplier Addresses

3. Supplier Sites

4. Supplier Site Assignments

5. Supplier Bank Accounts

I need these to be called in the order listed.  I have therefore, created another integration which calls the above.

My issue is, that all the 5 integrations are called immediately when I need each one to wait for the prior integration to finish before starting.

I've searched existing recipes for any examples, but could not find any. 

How can this be done?