# Resolve Data Mapping Issues

The Data Mapping issue may appear during the initial data validation process, which always takes place after selecting the files you want to upload **(Step 2 of data import)**.

## To Resolve Data Mapping Issues

1. Click the **'Data Mapping'** from the validation navigation within the data import process:
2. Once clicked, a list of all the fields that are unrecognized by the system is listed in the main content area.

<table data-header-hidden data-full-width="true"><thead><tr><th width="180"></th><th width="483">Description</th></tr></thead><tbody><tr><td><strong>Field Name</strong></td><td>Field Name where the data error is seen.</td></tr><tr><td><strong>Source</strong></td><td>The actual data value that exists from your source file, that is not recognized by the system.</td></tr><tr><td><strong>Target</strong></td><td>The data value defined in the IAF CertSearch database.</td></tr></tbody></table>

3. Under the Target column, search or select the dataset you want to map your source data to.
4. Once all data mapping issues are resolved, click the **'Apply Data Mapping'** button to ensure that the mapped data are submitted.
5. Once done, the system will continue validating your data.&#x20;
6. If all data is valid, your data will be successfully imported.