Marketpress Paypal Problem

Ok, have been using the lite version now for a little while and things seemed fine, so upgraded to the full version today and now it won’t complete the transaction with paypal citing…

“10413 – Transaction refused because of an invalid argument. See additional error messages for details. – The totals of the cart item amounts do not match order amounts.”

I am right in the middle of a voucher site campaign and decided to deactivate the paid for marketpress and re-activate the Lite version.

Went back to authenticating correctly with no problems… Bug?

Am i doing something fundamentally wrong? Installed full version as advised

please advise urgently.. thanks


  • PC
    • WPMU DEV Initiate


    Greetings and thanks for posting on the forums.

    First of all Welcome to WPMU DEV.

    Did you remove the lite version completely before installing the premium version ? If not, then you should do that else there will be conflicts.

    However, I would like to ask you to take a backup of the site before you make any changes. So that we can revert in case there are any issues.

    Please advise if that helps.

    Cheers, PC

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