It's a batch resource file that gets created by the sub-ledger application (ie Property Manager). The name of the file will be ??BRSCGL.xxx where ?? is the 2 character designation of the application - or PM for Property Manager. So you need to have a PMBRSCGL.xxx file in your data directory (where GL is) in order for Ledger to be able to locate the PMGLBTCH.xxx file.

Property Manager should create this file in the data directory. Do you keep the Ledger data in the same place as the PM data, or in different places? If not, you might have to load PM with the GL data in the directory in order for that file to be created, and then copy it to the location where your GL data is.

Note that Adagio Ledger 9.0A-C versions 'prefer' to look for files that use 'AL' in the retrieval file names instead of 'GL' because the structure is different and has more stuff. Property Manager will never do this. Adagio Ledger 9.0x should continue to look for and retrieve 'GL' batches as well as 'AL' batches.