Allplan 2024. External references are still not uploaded to BIMplus, although they are exported perfectly to IFC. If you want to use BIMmplus in project management, you have two options:
1- Give up the use of external references in Allplan, giving up the advantages that this very useful tool provides.
2- Upload the Allplan model in IFC format to Bimplus, giving up the advantages of connecting the native Allplan format with Bimplus.

In the case of option two, it is worth asking what advantage the use of BIMplus offers to Allplan users, compared to other platforms such as Trimble Connect. The answer is: none.

In short, a difficult decision.