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Hello,
I am implementing custom transformer based on the document:
<https://datahubproject.io/docs/metadata-ingestion/transformers#writing-a-custom-transformer-from-scratch>

After running the recipe file, I am getting the below error:

“Failed to validate record with class com.linkedin.common.Ownership: ERROR :: /owners/0/owner :: “Provided urn “owners” is invalid”

Here is my owners.json:

{
	“owners”: [
	 {
		“owner”: “urn:li:corpuser:mahbub”
		“type”: “DATAOWNER”
	}

	]
}

Appreciate your response.

Thanks,
Mahbub

Based on your error your custom transformer is treating "owners" as the urn so instead you would want to either set up your json file as:
```{
"urn:li:corpuser:mahbub"
}```
or change your transformer code to parse lower in the json object

The doc mentioned that owners.json  file should look like the following:
simply an array of owner urns.
```[
  "urn:li:corpuser:athos",
  "urn:li:corpuser:porthos",
  "urn:li:corpuser:aramis",
  "urn:li:corpGroup:the_three_musketeers"
]```

Thanks!! I thought it was a working code with the provided sample. Apparently, I had to modify the code to parse the JSON and get the URN from inner layer.