By default Store Exporter Deluxe uses the PHP temp directory for generating export files but on some misconfigured WordPress sites the ‘temp’ directory needs to be adjusted (e.g. where the open_basedir restriction is in effect but a valid tmp path has not been set).
The exposed WordPress Filter woo_ce_sys_get_temp_dir allows us to override the default temp directory used by Store Exporter Deluxe for generating export files. Add the following PHP snippet to your Child Theme’s functions.php file:View Code
The We could not create a temporary export file in … ensure that WordPress can read and write files here and try again Troubleshooting resource expands further on this issue.