Custom metadata can be text or numeric. You can only edit and import custom fields and custom values. Any attempt to import values for any of the fields populated by Monitor will fail. Refer to Reserved column names for a list of column names to avoid.

Environment admins can manage Asset catalog task metadata with APIs or in Monitor. The most efficient method depends on the objective and the amount of metadata involved:

• To add custom columns:
  • The custom-metadata/columns API adds one or more custom columns in one call.
  • A CSV file upload in the Download and upload metadata page adds one or more custom columns and associated values.
• For a specific task, add or edit existing custom column values:
  • The custom-metadata API adds, retrieves, or updates multiple values in one call.
  • The task details panel Custom tab displays custom columns and supports editing.
• To add multiple columns and values at the same time, upload a CSV file.
• To delete one or more custom columns in one call, use the custom-metadata/columns API.