When starting Subsystem Analyzer the following message was displayed in the xmanager log: PSA0211 SSANALZE MODIFY FAILED/DATASTORE DOES NOT EXIST
Release : 20.0
Component : Subsystem Analyzer for Db2 for z/OS
The datastore was created via batch but couldn't be displayed in the product option 2. Deleting the datastore and then recreate it via the panel and restart the collection and that solved the problem.