# Data resync settings
<a name="CHAP_Tasks.CustomizingTasks.TaskSettings.DataResyncSettings"></a>

The Data resync feature allows you to resync target database with your source database based on data validation report. For more information, see [AWS DMS data validation](https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Validating.html).

You can add additional parameters for `ResyncSettings` in the `ReplicationTaskSettings` endpoint that configures the resync process. For more information, see [Task settings example](https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TaskSettings.html#CHAP_Tasks.CustomizingTasks.TaskSettings.Example) in the [Specifying task settings for AWS Database Migration Service tasks](https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TaskSettings.html).

**Note**  
`ResyncSchedule` and `MaxResyncTime` parameters are required if the resync process is enabled and the task has a CDC component. They are not valid for full-load only tasks.

The Data resync parameter settings and values are as follows:

`EnableResync`  
Enables Data resync feature when set to `true`. By default, Data resync is disabled.  
**Datatype**: Boolean  
**Required**: No  
**Default**: `false`  
**Validation**: Should not be null if `ResyncSettings` parameter is present in `TaskSettings`.

`ResyncSchedule`  
Time window for the Data resync feature to be in effect. Must be present in Cron format. For more information, see [Cron expression rules](CHAP_Validating.DataResync.md#CHAP_DataResync.cron).  
**Datatype**: String  
**Required**: No  
**Validation**:   
+ Must be present in Cron expression format.
+ Should not be null for tasks with CDC that has `EnableResync` set to `true`.
+ Cannot be set for tasks without CDC component.

`MaxResyncTime`  
Maximum time limit in minutes for the Data resync feature to be in effect.  
**Datatype**: Integer  
**Required**: No  
**Validation**:   
+ Should not be null for tasks with CDC.
+ Not required for tasks without CDC.
+ Minimum value: `5 minutes`, Maximum value: `14400 minutes` (10 days).

`Validation onlyTaskID`  
Unique ID of the validation task. The validation only task ID is appended at the end of an ARN. For example:  
+ Validation only task ARN: `arn:aws:dms:us-west-2:123456789012:task:6DG4CLGJ5JSJR67CFD7UDXFY7KV6CYGRICL6KWI`
+ Validation only task ID: `6DG4CLGJ5JSJR67CFD7UDXFY7KV6CYGRICL6KWI`
**Datatype**: String  
**Required**: No  
**Validation**: Should not be null for tasks with Data resync feature enabled and validation disabled.  
Example:  

```
"ResyncSettings": {
    "EnableResync": true,
    "ResyncSchedule": "30 9 ? * MON-FRI", 
    "MaxResyncTime": 400,  
    "ValidationTaskId": "JXPP94804DJOEWIJD9348R3049"
},
```