3152432 - OAuth2 Cleint Credentials authentication fails with HTTP 422 - Bad Request

In a custom IFlow in your CPI tenant, a HTTP receiver channel is configured with OAuth2 Client Credentials authentication. The messages are failing with HTTP 422 - Bad Request. In the traces, you see the following error:

java.lang.IllegalArgumentException: Status code:422; Reason:{"code":422,"message":"Bad Request"}
at com.sap.it.rt.adapter.odata.oauth.OAuthTokenProducer.getOAuthAccessToken(OAuthTokenProducer.java:69)
 at com.sap.it.rt.adapter.odata.oauth.cache.provider.ClientCredentialsTokenProvider.getOauthResponse(ClientCredentialsTokenProvider.java:47)
 at com.sap.it.rt.oauth.cache.handler.impl.OAuthCacheImpl.getOAuthResponse(OAuthCacheImpl.java:119)
 at com.sap.it.rt.oauth.cache.handler.impl.OAuthCacheImpl$1.load(OAuthCacheImpl.java:43)
...

• Cloud Integration
• SAP Integration Suite

Cloud Integration, CPI, Cloud Platform Integration, HCI, HTTP, OAuth2, 422, Bad Request , KBA , LOD-HCI-PI-CON-HTP , HTTP Adapter , Problem