V3 API Maintenance Notification - March 22nd & 23rd, 2022

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Constant Contact will be conducting maintenance on our V3 API beginning today, March 22nd, at approximately 1:30 PM ET and ending at approximately 1:30 PM ET tomorrow, March 23rd.

During this time period, any applications/integrations which have not yet been updated to use our new authorization management service (as documented here https://developer.constantcontact.com/api_guide/auth_update_apps.html) will receive a 401 Unauthorized error response to any requests made to our V3 API.

The following categories of applications will be unaffected:
- V3 applications which have been updated to use our new authorization service
- V3 applications registered since Feb. 10th
- Applications using our V2 API

Thank you in advance for your patience.

For all applications affect by this maintenance, please note:
Our previous V3 API authorization management service will no longer be available as of March 31st. If you have any questions about updating your application, please contact our API Support team at webservices@constantcontact.com

Aarron G.
API Support Engineer
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