# Elsticsearch5.6.\*:\_id is not configurable
**URL:** https://discuss.elastic.co/t/elsticsearch5-6-id-is-not-configurable/115496
**Category:** Elasticsearch
**Created:** [January 15, 2018, 8:39am UTC](https://discuss.elastic.co/t/elsticsearch5-6-id-is-not-configurable/115496 "2018-01-15T08:39:38Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@xiaoxiami](https://discuss.elastic.co/u/xiaoxiami)
#### Post date: [January 15, 2018, 8:39am UTC](https://discuss.elastic.co/t/elsticsearch5-6-id-is-not-configurable/115496/1 "2018-01-15T08:39:38Z")
Hi,all
It told me "\_id is not configurable" when i ceate index by assign \_id mapping mainkey od the source.
create index statement is
curl -X PUT localhost:9200/test
{
"settings" : {
"number\_of\_shards" : 1,
"number\_of\_replicas":0
},
"mappings" : {
"test1" : {
"\_id":{"path":"mainkey"},
"\_source" : { "enabled" : false },
"properties" : {
"mainkey" : { "type" : "string", "index" : "not\_analyzed" }
}
}
}
}
response is
{
"error": {
"root\_cause": [
{
"type": "mapper\_parsing\_exception",
"reason": "\_id is not configurable"
}
],
"type": "mapper\_parsing\_exception",
"reason": "Failed to parse mapping [test1]: \_id is not configurable",
"caused\_by": {
"type": "mapper\_parsing\_exception",
"reason": "\_id is not configurable"
}
},
"status": 400
}
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [January 15, 2018, 8:55am UTC](https://discuss.elastic.co/t/elsticsearch5-6-id-is-not-configurable/115496/2 "2018-01-15T08:55:44Z")
Please format your code using `` icon as explained in [this guide](https://discuss.elastic.co/t/about-the-elasticsearch-category/21). It will make your post more readable.
Or use markdown style like:
````
```
CODE
```
````
Yes. `_id` is not configurable. You need to provide it when you index your document:
```auto
PUT index/doc/id
```
---
### Author:  [@xiaoxiami](https://discuss.elastic.co/u/xiaoxiami)
#### Post date: [January 15, 2018, 9:25am UTC](https://discuss.elastic.co/t/elsticsearch5-6-id-is-not-configurable/115496/3 "2018-01-15T09:25:45Z")
yeah,i will use markdown next time.Thank your reply.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 12, 2018, 9:25am UTC](https://discuss.elastic.co/t/elsticsearch5-6-id-is-not-configurable/115496/4 "2018-02-12T09:25:57Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.