Metadata Restrictions
All metadata uploaded to V‑Spark have the following restrictions:
All metadata field names are case-insensitive, including reserved and custom field names. (Therefore, ‘AgentID,’ ‘agentid,’ and ‘AGENTID’ are all treated as the same metadata field.)
Custom metadata values and field names may be composed of any valid Unicode characters, except for the reserved non-alphanumeric characters Colon (":", Unicode 003A) and Equals Sign ("=", Unicode 003D).
If you plan to upload metadata via XML rather than JSON, your metadata field names cannot contain spaces. Metadata values can contain spaces in both XML and JSON.
The following are reserved metadata fields which have unique functions in the V‑Spark system, and cannot be used for custom metadata:
agent agent_v3 caller (apprx) datetime agent (apprx) _all caller_phonetic duration agent id all caller_phonetic_v3 file agentid all (apprx) caller_v3 filenamelowercase agent_phonetic _all_phonetic client speakers agent_phonetic_v3 caller client (apprx)