##  [Tutorials](/docs/tutorials) 

# Tutorials

In this section, you can find...

#### 1. API Testing:

After you create an app and enable API products for it, you can connect the app to those API products in the mock environment.

1. Click ***API Catalog*** on the menu bar.
2. Choose the API product.
3. Go to Reference Documentation and click ***Authorize*** to connect it.
4. In the ***Authorization*** popup, enter the ***Client ID*** for your app. Client ID is available on the apps page in your *My Apps* list (see the App registration section above), and the API *Key* value is the equivalent to your *Client ID*. Once authorization is complete, you can submit requests to the endpoints.

#### 2. Specifics around datatypes

1. #### Date:
    
    
    1. If we add date filter format as dd-mm-yyyy, it is not filtering. so our list contacts filter as we added validation it is showing error message. Currently filter with date accepts all other date formats such as: yyyy-mm-dd, mm/dd/yyyy, mm/yyyy, yyyy/mm, jan2023, 2023jan, dec12, 12/dec, 12-dec