Migrating multitenant from BI 4.1 to BI 4.2 wtih promotion tool

HI,

i have one BI 4.1 plateforme with multitenancy groups.

I have to migrate this plateforme in another plateforme BI 4.2 but ther is non communication between these 2 platforms.

So i use the promotion tool to export the BI 4.1 plateform but when i import into the 4.2 plateform the multitenancy groups are not created.

How can i do this operation ?

Thanks