EMA requirement: Required
About this column
The Logical Asset ID (ALID) column is intended for linking the content associated with the avail line item to the delivery info provided in the avail. This is a required column in the EMA template.
The ALID is to be used within the context of component deliveries, in combination with the Common Media Manifest, and the Media Manifest Core delivery format. ALIDs exist to provide an identifier that links individual experiences within a manifest file to discrete line items in the EMA avail.
ALID allows for identification of all assets (single or set) that comprises an avail covered by a single identifier. ALID instructs the retailers on which assets (edits, variants, etc.) are covered by the avail. It can be as specific as the retailer requires (e.g. a specific edit, or any edit available to the retailer).
Objects that can share the same ALID are:
- Single objects (movie, TV, short, etc.)
- Internally grouped objects (season, miniseries, etc.)
- Arbitrarily grouped objects (referenced recursively used ID)
Any unique string can be used. Per the specification, the recommended format is using the identifier structure defined in Common Metadata. This format consists of three parts:
- The ALID prefix e.g. md:alid
- The optional organization or EIDR tag e.g. org:nbcu or eidr-x
- The identifier e.g. 1489-49A2-3956-4B2D-EG76-6 or 2130583
- md:alid:eidr-s:1489-49A2-3956-4B2D-EG76-6
- md:alid:org:mpm.mymovie.com:2130583
Additional Google requirements
- For the time being, it is acceptable to duplicate the identifier used in the AltID column into the ALID column.
Example:
TitleInternalAlias ALTID ALID My Great Movie MyGreatMovieAltID1 MyGreatMovieAltID1 - ALID must be between 1 and 64 characters and contain only alphanumeric characters or the following symbols:
- / @ : _ . -