Arun-

Arun- You were sorta helpful. You guys have all been great. I already set up a sandbox account and I set up my personal biz account and received my :

Application ID

Api username

Api Password

Signature

Do I have to test, is it necessary to do testing? How do I set up the 3rd party?

I want the chained payments- (Etsy type account with a membership fee) I have some of it completed:

From Kim: Then you can visit the Network Admin Dashboard>Settings>Marketpress

On the General Settings please note that you cannot use Global Checkout with Chained Payments, so select no. ( I have it completed to here)

The form that I received from Kim said that I need Sandbox with the following:

Application ID

Api username

Api Password

Signature

I have NO CLUE WHERE TO get that information

This is what is says next for the steps from Kim: (Now this is where my real information goes and not sandbox, correct?)

From Kim, next steps:Scroll down to the PayPal Chained Payments Settings box Fill in your PayPal API credentials and pay special attention to the blue links in the following paragraph.

You will need to create and register your chained payments application.

https://premium.wpmudev.org/forums/topic/next-steps-mu#post-208075