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Problem with Ecotax + combinations and webservice


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I am using the Webservice in Prestashop to update the active products with the combinations available. However when I successfully add the combinations from the API then I get an error when saving them when I update inside the Backoffice.

I have tried todo some digging on it and the errors are connected to ecotax that is also switched off.

I am running version:


I have tried to switch off all external modules. The theme I am running is the standard theme that came with the installation.


I am really out of ideas: The error that i got was "Ecotax cannot be null".

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