Validations:

• The name field is required. If only the name is provided without additional data, a custom set will be created with no items, and access will be granted to all teams within the organization.
• If the teams field is provided, it must contain valid team IDs belonging to the organization.
• If an items field is included in the data property:
  • The items will appear in the custom set in the same order they were specified.
  • Each item must include an item_name field, which is required.
  • Other fields within each item (e.g., reference_id, score, color, is_flagged) are optional.

When to expect errors:

400 Bad Request:

• The custom set’s name is missing or empty.
• An item’s name is missing or empty.
• An invalid team ID is provided.
• Any other parameter contains an invalid data type.

401 Unauthorized

• The provided API key is invalid or missing.
• You attempt to create a custom set for a team that you do not have permission to access.

404 Not Found

• An unexpected error occurs while processing the request.