Manufacturer GLNs do not match...

Error:

Manufacturer GLNs of the article groups to be merged do not match.

Explanation:

Articles are merged into article groups within the database. The manufacturer-GLN is a unique identification for a particular supplier. Within an article group, articles from different suppliers cannot occur. The articles that are merged via the import file have different manufacturer GLN's in the EZ-base data and therefore cannot come in one group.

Solution:

Make sure that the manufacturer GLN within the article groups to be merged is the same by correcting the wrong GLN.

You can check or request GTINs/GLNs at GS1.

Note: If different manufacturers are actually involved, the article groups cannot be merged.