All customer API credentials are now listed in the platform, click on the 'Home' section under a project to view them.
If you cannot see these credentials it may be due to not having the integration permission set, please contact us if you cannot see the project details section.
Once you can view this section, click on 'Reveal API Credentials' to view all credentials for the project:
The AccountSID and API Token details are per account and should not change between projects, the PropertySID is unique for each property and hence you should make a note to use the correct PropertySID for any integration or API call you require.
The Dynamic Tracking Script ID is only for us in dynamic tracking scripts and should not be required for standard integrations or API calls.