Setting or adjusting the Coordinate Reference System (CRS) ensures your geospatial files are displayed and processed correctly on the platform, helping you avoid misaligned data and safeguard consistent results across your geospatial data. When you upload files, the platform automatically pre-processes them and extracts geographic information, including the CRS.

In some cases, however, the CRS cannot be found or fully verified. This may happen if:

- no CRS is included in the metadata or auxiliary files

- the CRS is stored in a non-standard location or format within the file

- the detection algorithm cannot confirm the CRS with certainty

- multiple CRS definitions are present in the same file.

When this occurs, you will see a warning message in the Overview tab, stating the CRS is missing. Alternatively it could occur that the EPSG code is interpreted as 40400 (indicating that no valid CRS was found) in the Metadata tab.

You can manually control and correct your files’ CRS. Simply go to the Metadata tab and use the File information section to manually set or adjust the CRS. Alternatively, you can right-click on the file and select Edit CRS from the context menu. This ensures your files' CRS are accurately interpreted and fully ready for use, even when automatic detection fails.
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When you have chosen your new CRS please click 'Apply & Reindex' to save and activate the new setting:

When the CRS was modified this is indicated as follows:

In case you like to revert to the files original setting you can reset the CRS modification by clicking the reset button right of 'Edit CRS' (see above screenshot).