Fix IllegalArgumentException

✅ Solution

IllegalArgumentException in Elasticsearch bulk operations often stems from mismatched data types between the data being indexed and the Elasticsearch field mappings, or attempting to insert values that violate constraints within the mappings. Review your Elasticsearch field mappings to ensure they correspond with the data types you are sending. Modify the data being inserted to match those types, or adjust the Elasticsearch index mappings before indexing to allow for the data being sent.