> For the complete documentation index, see [llms.txt](https://docs.thesports.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.thesports.com/help-center/football/how-to-use-the-uid-field-for-duplicate-data.md).
# How to use the uid field for duplicate data？
The [**Competition**](/thesports-docs/basic-info/competition.md), [**Team**](/thesports-docs/basic-info/team.md), [**Player**](/thesports-docs/basic-info/player.md), and [**Coach**](/thesports-docs/basic-info/coach.md) API endpoints include a `uid` field for identifying duplicate records.
Duplicate records may occasionally exist in the data.
For example, the following two ids refer to the same player, Alan Smith:
```
l965mkyh9wgr1ge
2y8m4zhgx28ql07
```
After identifying the duplication, TheSports consolidates the records and designates `2y8m4zhgx28ql07` as the correct record to use.
* A non-empty `uid` field indicates that the current record is a duplicate and points to the id of the correct record to use.
* An empty `uid` field indicates that the current record is the correct record to use.
{% hint style="info" %}
Note: Duplicate records may occasionally occur. TheSports regularly reviews and consolidates them. Continue synchronizing the API endpoints as recommended to receive the latest data.
{% endhint %}
---
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