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.
