Unable to access payload _source fields using Watcher foreach with rollup data

Elastic Stack Elasticsearch
2

I resolved the issue. Mustache is not able to access fields with a dot inside them. I added a transform action, where I changed the field name, and then logged it out.

  "transform": {
    "script": {
      "lang" : "painless",
      "inline": "ctx.payload.hits.hits.forEach(hit -> hit._source.service_name_terms_count = hit._source['service.name.terms._count']); return ctx.payload"
      }
  }

"text": "Found ##{{ctx.payload._id}}## at ##{{ctx.payload._source.service_name_terms_count}}##"