Currently, numeric subfields such as $0 and $1 are excluded from Primo VE’s standard MARC to PNX mapping. This prevents institutions from displaying and passing on crucial metadata, such as authority IDs, in/from the Primo VE UI.

Please map at least subfields $0 and $1 to PNX
This would greatly benefit libraries that rely on authority control and linked data, ensuring that identifiers like VIAF and GND IDs can be used for enhanced metadata display and linking within Primo VE as provided for by the MARC standard .

Use Case Example:
A record with multiple subject headings (650 fields) includes corresponding $0 subfields containing GND IDs.
Currently, these IDs are not accessible, meaning they cannot be displayed or linked to external authority services.
With the proposed enhancement, institutions could properly map these identifiers to custom fields and improve metadata accuracy and display options.

By mapping numeric subfields to PNX, Ex Libris would significantly enhance Primo VE’s ability to support linked data and authority control, aligning it better with modern metadata standards.