Get all Constant Contact client accounts managed under your technology
partner account. Use the limit query parameter to set the number of
accounts to return on each results page. Use the account_type query
parameter to filter client account results by type: all (default),
managed, or unmanaged.
Only technology partners can access partner endpoints and partner endpoints
cannot be tested using the API reference tester.
For more use case information, see Get all Partner Client Accounts
in the API guide.

Use this POST method to create a new Constant Contact client account
under your partner account, set up the billing plan for the account,
and to add the new client to the default contact list.

Newly created accounts are free trials which give the user up to 60
days to try Constant Contact before buying. Trial accounts have limits
depending on the services that are included.

If a field validation error occurs, a 400 response message is returned.

If provisioning does not complete successfully due to unavailable dependencies,
such as database or dependent services, a 503 response message is returned.
By default, the client account provision data is stored and processed
when provisioning becomes available.

Some client account features will be supported in future releases, such
as Single Sign On (SSO).

For more use case information, see Create a new Partner Client Account
in the API guide.