Luckily, I managed to find a table that can cut down the time spend trying to locate where the output device was configured.
SAP Output Devices are configured with transaction code SPAD
This useful table name is NACH
You can make used of tcode SE16 or SE16N to retrieve the output device information.
Make use of this key to speed up your search.
NACH-KAPPL – Application
E1 - Inbound Delivery
EA - Purchasing RFQ
EF - Purchase Order
EH - Variant Matching
EL - Purch. SchAgrRelease
ES - Entry Sheet
EV - Purch.Outline Agr.
V1 - Sales
V2 - Shipping
V3 - Billing
V4 - Shipping (Spec.Case)
V5 - Groups
V6 - Handling Units
V7 - Transport
NACH-LDEST - Spool: Output device
These two fields combine forms your configure table.
NACH-KVEWE - Usage
of the condition table
NACH-KOTABNR - Condition table
Copy the key fields from NACH- KNUMH - Number of output condition record and paste in table e.g. B900
KSCHL is your Output Type control where you used if to configure your SAP Output Device.
With table NACH, it going save you plenty of time especially when you are in an environment where many output devices have been setup.
