Invalid API Key Error (APNX-1-4552-001) in Deployment API Deployment API Export action

Certified Lead Developer

Hi Everyone,

I’m working on the Deployment API export action and am encountering an "Invalid API Key" response. When i make a Deployment API POST call to Environment-A from Postman and Environment-B(Self-managed cloud)both are returning the same error:

  • Response: 403 - Invalid API Key
  • Message: "Invalid API Key. Contact your Appian system administrator to obtain the proper credentials."
  • Error Code: APNX-1-4552-001

Here’s what I’ve checked so far:

  1. Admin Console: I reviewed the web API authentication page (/suite/admin/page/web-api-authentication), and I noticed that the last used date and time are populated.
  2. Login Logs: I also checked the Login-audit.csv file, where I can see an entry showing a successful login for Web-API service account.

Does anyone have any insights or suggestions on what might be causing this issue or how I can resolve it?

Thanks in advance!

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