This article helps our Volunteer Squad keep the database clean and consistent! It pertains to members who have Coordinator access and above. If you're interested in getting involved, read more about joining the Squad here. We'd love to have you aboard!
If you find duplicate Database Items, they can be merged together by a Squad member with the Coordinator role. If you are not a Coordinator, please flag the duplicate item and include the HDBID and URL of the item it should be merged into.
How to Merge
To merge items go to Curation > Manage Database Items and find the items you like to remove by merging them into another item, mark them and add them to your Workbench. In the Workbench find the item to Merge or Quick Merge into and select the photos and attributes to keep.
- Merge. You will see the two items side-by-side. Several item attributes will be shown in a list below each photo. Select which photos and attributes to keep
Chose the left value, the right value or none (the red cross in the middle) -
If the values are the same you do not need to chose. - Quick Merge. No photos or attributes of the item to be merged will be kept.
In either Merge Collection items, Marketplace listings, Wish List items, and Price Points from Item to be deleted will be automatically transferred to Item you chose to keep. If you need to merge three items, merge two first and then merge the remaining two).
IMPORTANT: The item attributes at the very bottom of the merge page called Other Fields are not yet available to select on the Confirm Merge page. 
You need to manually transfer any additional information from Item B by entering it on Item A's edit form.
To keep things as fair as possible, the Squad member who added the older of the two items will be set as the creator of the merged item.