Reference API docs: https://developer.harness.io/docs/software-engineering-insights/harness-sei/setup-sei/configure-integrations/custom-cicd/#api-specification

At this time, the /v1/custom-cicd endpoint does not support batch requests such that if a customer wants to ingest large quantities of historical data (ex. 100k+ runs) into Harness, this would create a negative developer experience. Adding batch request support would go a long way in helping with large data ingestion to the platform.