The last time I imported stuff into metabox fields there were two plugins, one from WPAI and one from Metabox. Which one is considered the proper one these days?
The compatibility plugin between Meta Box and WP All Import (WPAI) is developed by WPAI team. Please use their plugin to get full features when importing data with Meta Box. https://www.wpallimport.com/import-meta-box-fields/
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