[source-apple-search-ads] OAuth attempts to use grant type `client_credentials` while being configured for `refresh_token`

[olagjo]

Connector Name

source-apple-search-ads

Connector Version

5.7.5

What step the error happened?

Configuring a new connector

Relevant information

When attempting to set up a new connector with the Apple Search Ads source, the "Test source" step (and subsequent connection setups) fails with the error message OauthAuthenticator needs a refresh_token parameter when grant_type is set to refresh_token.

The failure is internal to Airbyte, before it even attempts to talk to Apple, and it is clear from the refresh_token_endpoint, that we attempt to use "client credentials" as grant type.

Simply manually adding "grant_type: client_credentials" to the manifest resolves the problem

Relevant log output

No response

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