Setting up Salesforce Marketing Cloud
1/ Login to your Salesforce Marketing Cloud account
2/ Click on your profile on the top right corner and go to Setup

3/ In the left sidebarn click on App
inside Platform tools
then Installed packages
4/ Click on New
to create a new package (this will allow you to interconnect Salesforce to Fastory). Give it a name ex: Fastory

5/ Click on Add component
at the center of your page
6/ Select API Integration
then click on Next

7/ For the type of integration, tick the Server-to-server box
then click on Next

8/ A list of properties is displaying. Select the above properties:
In CONTACTS, tick the List and Subscribers
box: read and write
In DATA, tick the Data Extensions
box: read and write

9/ Click on Save
and let this page open. Open Fastory in a new tab.
Setting up Fastory integrations
10/ On Fastory go to Settings
then Integrations
and click on the Salesforce Settings

11/ Fill in the fields inside Fastory with the information you get in the Salesforce page:

To be filled here:

12/ To find the Account MID
you need to go go to your account in Salesforce:

13/ Once the fields are filled, click on Test connection
to check that everything works fine.
Here it is, you made it. Your accounts are interconnected 😉