Move from /PartitionA to /Common

All shared/synchronized objects created under /PartitionA should be included on "/config/partitions/PartitionA/bigip.conf".

Depending on how big a list of objects(virtual servers, pools, profiles, iRules, etc.) are in that file, it could be as simple as:

Copying those into a text editor

Replacing "/PartitionA" with "/Common"

Edit "/config/bigip.conf" (make a copy or download before editing) by inserting the edited additional objects from "/config/partitions/PartitionA/bigip.conf"

Validate the edited configuration file (tmsh load sys config verify)

Correct any errors from the previous validation step

Load the edited configuration file (tmsh load sys config)

Hope that helps.