---
title: Retaining destination-only fields
description: To synchronize changes to the source fields while preserving the value of the verified field of the ubidEmailJSON attribute at the destination, configure the JSON Attribute as follows:
component: pingdirectory
version: 11.0
page_id: pingdirectory:pingdatasync_server_administration_guide:pd_sync_retain_dest_only_fields
canonical_url: https://docs.pingidentity.com/pingdirectory/11.0/pingdatasync_server_administration_guide/pd_sync_retain_dest_only_fields.html
revdate: September 13, 2023
---

# Retaining destination-only fields

To synchronize changes to the source fields while preserving the value of the `verified` field of the `ubidEmailJSON` attribute at the destination, configure the JSON Attribute as follows:

```shell
$ bin/dsconfig create-json-attribute \
  --pipe-name "A to B" \
  --class-name Users \
  --attribute-name ubidEmailJSON \
  --set id-field:value \
  --set exclude-field:verified
```

The `verified` field is excluded and `value` is chosen to correlate destination values with source values. For example, given that the source and destination `value` fields match, if the source initially contained:

```
ubidEmailJSON: {"value" : "jsmith@example.com",
                "type" : "home"}
```

and the destination contained:

```
ubidEmailJSON: {"value" : "jsmith@example.com",
                "type" : "home",
                "verified" : true},
```

if the source changed to:

```
ubidEmailJSON: {"value" : "jsmith@example.com",
                "type" : "other"}
```

then the destination would change to:

```
ubidEmailJSON: {"value" : "jsmith@example.com",
                "type" : "other",
                "verified" : true}
```

However, if the source changed to:

```
ubidEmailJSON: {"value" : "john.smith@example.com",
                "type" : "home"}
```

then the destination would be updated to:

```
ubidEmailJSON: {"value" : "john.smith@example.com",
                "type" : "home"}
```

The `verified` field has been dropped because this logically represents a new JSON object rather than an update of an existing one.