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I have a problem of export and import in my site,

error are :

system - import/export - export :


system - import/export - dataflow profiles - export all products :


marked as duplicate by Fabian Schmengler, Qaisar Satti, Raphael at Digital Pianism, Fabian Blechschmidt, brentwpeterson Jul 22 '16 at 20:12

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


I do not know if it's your case, but the "No valid data sent" Error, I have seen it when there is a problem in the catalog_category_entity table, specifically if for any reason, any category has in parent_id the id of a category that no longer exists.

I think the error comes directly from the method exportAction() from Mage_ImportExport_Adminhtml_ExportController class:

public function exportAction()
    if ($this->getRequest()->getPost(Mage_ImportExport_Model_Export::FILTER_ELEMENT_GROUP)) {
        try {
            /** @var $model Mage_ImportExport_Model_Export */
            $model = Mage::getModel('importexport/export');

            return $this->_prepareDownloadResponse(
        } catch (Mage_Core_Exception $e) {
        } catch (Exception $e) {
            $this->_getSession()->addError($this->__('No valid data sent'));
    } else {
        $this->_getSession()->addError($this->__('No valid data sent'));
    return $this->_redirect('*/*/index');

So, check the var/log/exception.log, maybe you can see more information about the error.

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