Query help must_not except when

Elastic Stack Elasticsearch
4

I believe this because you let the following clauses:

{
      "match": {
        "notificationType": "88"
      }
    },
    {
      "match": {
        "productForm": "DH"
      }
    }

I'd probably remove that.

If you need further help, could you provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.