Reference Glossary
Custom metadata field
A metadata field an organization adds to its DAM schema beyond the built-in or industry-standard fields (such as IPTC or Dublin Core) to capture information specific to its own business processes.
Why it matters in a DAM
Standard schemas cover copyright, creator, and description but were never built to track a campaign code, internal SKU, brand-approval status, or which retailer an image was cleared for. Custom fields let a DAM answer business-specific queries like 'show me every asset approved for the Q4 catalog' — but because they aren't part of any standard, they don't survive a crosswalk to an external system unless someone maps them by hand.
A worked example
Common mistake
Different teams or asset collections each invent their own field for the same concept — 'Photographer', 'Shooter', and 'Photo_Credit' all storing the same information under different names — which splits search results and breaks any report that aggregates across the whole library.
Custom metadata fields exist because no standard schema anticipates every organization’s internal workflow. IPTC Photo Metadata covers creator, copyright, and licensing; Dublin Core covers general resource description; neither has a field for an internal SKU, a retailer clearance flag, or a brand’s own approval-stage taxonomy. DAM platforms expose a schema editor precisely so administrators can add these fields without waiting on a vendor release.
The practical risk is schema sprawl. Because custom fields are cheap to add and nothing stops two departments from creating overlapping ones, large DAM libraries commonly accumulate dozens of near-duplicate fields — a legal team’s ‘Rights_Cleared’ next to a marketing team’s ‘Usage_Approved’, both meaning roughly the same thing but populated inconsistently. This directly undermines search and reporting, since a query against one field silently misses assets tagged only in the other.
Good practice is to treat custom fields as governed additions to the schema, not free-for-all entries: a single owner reviews proposed new fields, checks whether an existing field already covers the need, and documents the field’s controlled vocabulary before it goes live. Fields that will ever need to travel to an external system — a PIM, a CMS, a partner’s DAM — should also be flagged for inclusion in any metadata crosswalk from day one, rather than retrofitted later.
Frequently asked
What is a custom metadata field?
A metadata field an organization adds to its DAM schema beyond the built-in or industry-standard fields, such as IPTC or Dublin Core, to capture information specific to its own business processes.
Why do standard schemas need to be extended with custom fields?
Standard schemas cover copyright, creator, and description but were never built to track a campaign code, internal SKU, brand-approval status, or which retailer an image was cleared for. Custom fields let a DAM answer business-specific queries like 'show me every asset approved for the Q4 catalog.'
What's the tradeoff of relying on custom fields?
Because they aren't part of any standard, custom fields don't survive a crosswalk to an external system unless someone maps them by hand — the convenience of a business-specific field comes at the cost of portability.
What happens when different teams invent their own custom field for the same concept?
'Photographer', 'Shooter', and 'Photo_Credit' can all end up storing the same information under different names, which splits search results and breaks any report that aggregates across the whole library.
How can duplicate custom fields for the same concept be avoided?
By governing custom field creation centrally rather than letting individual teams or collections add their own field whenever they need to track something similar, so one concept maps to exactly one field across the library.
Do custom fields transfer automatically during a DAM migration?
No — since they fall outside standard schemas like IPTC or Dublin Core, they require someone to explicitly map them in a metadata crosswalk, or they simply won't carry over to the destination system.