Talk:Backup 1.9 conversion for developers

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I did a M1.9 to M2 backup script for the non standard module "referentiel" ( Everithing works fine but ... user data are not restored at all.

It seams that not any module can restore user data from M1.9 backup, all the necessary stuff being in the backup. Why ?.

Restore screen m19 to m2.jpg