> For the complete documentation index, see [llms.txt](https://docs.opshub.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.opshub.com/v7.226/manage/api/sample-use-cases/add-fields-to-mapping.md).

# Add fields to existing Mapping

## Description

* If you want to add fields to an existing mapping, then you can use this sample script.

## Input

* Instance details:
  * Instance details like <code class="expression">space.vars.OIM</code> instance URL, username and password are to be given in **instanceDetails.properties** file available within script.
* Mapping details (to be given at the time of script execution):
  * Mapping id to be updated.
  * Internal name of the field of system 1.
  * Internal name of the field of system 2.

### Output

* Updated mapping

### Script

You can download the script from [here](https://opshub.com/ohftp/AdminAPI/addFieldsToMapping.zip).

Below is an example of execution of script which shows the input and output:

<div align="center"><img src="/files/ILa7nS3X8JBWw7eFpycv" alt=""></div>


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