Migrate the generic material &1 before migrating the variant

What causes this issue?

You want to use the new processing of fiber compositions for textile
products for the first time, for the variant of a generic article. To
enable this, the system automatically migrates the previously available
fiber compositions from the old data store into the new data store (if
this has not already been done). However, you are not allowed to migrate
only individual variants for a generic article; both the generic article
and all variants must be migrated at the same time.

System Response

The system prevents you from using the new processing method to change
the fiber compositions for the variants.

How to fix this error?

You can simultaneously migrate the generic article, including all
variants, by using the system's automatic copy logic from generic
articles to variants. To do so, you need to first navigate to the new
processing of fiber compositions for textile products in change mode,
for the generic article. You can then also use the new processing method
individually for each variant.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.