Must supply a valid HTTP Basic Authorization header

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  • Plugin Author Carlo Roosen

    (@carloroosen)

    Hi,

    First I will ask the obvious: did you enter the correct list ID and API key? Both are a 32 character hexidecimal string.

    We have a similar issue with our other CM plugin (campaign-monitor-synchronization). The only hint we have so far is that there can be a conflict with some other plugins that uses the CM API.

    We are working on it, I expect it to be solved over the weekend.

    Good luck, Carlo

    Plugin Author Carlo Roosen

    (@carloroosen)

    The error is (most likely) caused by a conflict with another plugin, which uses an older version of the Campaign Monitor library. Ask the other plugin developer to upgrade the library.

    I had a similar issue and it turned out to be a wrong list id I was using. I was taking my list id from the url in my cm dashboard, when the correct list id is displayed when you click the change name/type link in your dashboard.

    maybe that helps, cheers!

Viewing 3 replies - 1 through 3 (of 3 total)
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