Important Note about Professional Edition
How to configure Conga Batch to run on a scheduled basis in Professional Edition.
The Next Run Date and Schedule Description fields (API field names APXT_BPM__Next_Run_Date__c and APXT_BPM__Schedule_Description__c) must be included on the Conga Batch page layout for Professional Edition instances. If these fields are not included on the Conga Batch page layout, Conga Batch will not be able to write to them and therefore the scheduled Conga Batch solution will not process.
To configure Conga Batch to run on a scheduled basis
Now Conga Batch batches may be scheduled via the Schedule button on the Conga Batch record.