Flat File Hierarchy Datasources

We are creating several flat file hierarchy datasources. The datasources will be maintained in an external database.

I am familiar with the creation of flat file datasources for master and transactional data, but don't have good documentation for how the external flat file hierarchy is to be formatted.

We have reviewed the 2004 Netweaver Document "How to Download Hierarchies in BW" and have used the program referenced there, Z_SAP_HIERARCHY_DOWNLOAD, to download our hierarchies to then test the upload.

However, this has not worked.

Does anyone have the record layout that the flat file must be in to upload a simple 2-level hierarchy (for example groupings of 0vendor)?

Thanks, Doug