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Report changes to maps or geodata

Have you noticed any changes in the area that still need to be reflected in our products? Or have you discovered an error in a map or a set of geodata? If so, please let us know - on the road via smartphone or from home.

Image traffic network
Many reports concern changes to the road network

To send us your suggestions for corrections to swisstopo products, all you have to do is click on a link. Typical changes include traffic diversions, new buildings, new geographic names. Just click on or use the swisstopo app to report any required changes to our data.

Your messages and suggestions will help us to continually improve our maps and geodata. Thank you in advance for your valuable support. 

Enter reports in the federal geoportal

Please open and let us have the following information:

  1. Enter a brief description of your proposed modification in the «Comments» field (mandatory).
  2. Indicate the corresponding location in the viewer.
  3. Include an additional document (e.g. photo) and your e-mail address.

Enter reports with the swisstopo app

Report your suggested corrections directly from the swisstopo app:

  1. Select the tool "Changes".
  2. Long press on map to set a point and add further points to draw a line.
  3. Select "Enter".
  4. Briefly describe your suggested correction in the comment field (obligatory) and complete your message with a photo and your e-mail address (optional).


Please describe your suggested change or correction. This is a mandatory field. Its content will be published on the federal geoportal later on. Please limit your comments to a brief description of the facts.

The text in the “Comments” field will be published on the federal geoportal later on. Please do not include any personal details or statements in this field that you do not wish to have published on the Internet. This field is also not the right place for providing location addresses or coordinates. Please indicate the relevant object directly in the viewer (step 2).

This helps us identify the corresponding location. It also simplifies our interpretation of your message and our search for the object in question. Only reports that include details of the location can be published on the federal geoportal.

Use the dot or line tool (step 2) to highlight the object in the viewer. This enables us to check the data according to your notification.

For technical reasons, geometries for indicating sites can only be created in the desktop version of Notes recorded in the "mobile version" of do not appear in the federal geoportal. Use the swisstopo app if you want to send a revision notification from a mobile device (e.g. smartphone). In the swisstopo app you can indicate the location with points or lines. The messages sent via the swisstopo app are then published on the federal geoportal.

Yes. You can attach additional files via the «Upload» field, e.g. photos, brochures, text extracts.

No. Providing your e-mail address is optional. We only use it to confirm receipt of your report and to contact you if we have any queries.

Your notification will be forwarded to the appropriate data owners for examination. Any adjustments that may be required will be carried out in the relevant production systems.

The publication of corrected data depends on the updating cycles of the various swisstopo products.

Use the « Report problem» function in (federal geoportal).

Publication of notifications

Since June 2017, swisstopo has been publishing the messages it receives (which we refer to as revision notifications) on the federal geoportal. They are displayed as items under the heading, «Notifications for maps and geodata», and in each case include the content of the mandatory «Comments» field plus the current processing status. Senders can therefore monitor the progress of their messages at any time. A revision notification can only be published if dot or line geometry has been entered for identifying the location. During office hours, reports appear on the federal geoportal within 1 hour.


Notification not yet assigned

Status 1: Publication on the federal geoportal within 1 hour during office hours.

Notification assigned

Status 2: Initial analysis of the notification within 10 working days. Notification forwarded to the relevant data owner and production group for further processing.

Modified in the production system

Status 3: Data have been modified in the production databases. Timing depends on the updating cycle of the respective product.

Erroneous notification

Status 4: Messages that do not concern swisstopo data and products (e.g. addresses) will be forwarded to the corresponding data owners and will not be processed by swisstopo.


The publications concerning the improvement service are available only in German and French. Please select your preferred language in the navigation bar to view the desired document.

Federal Office of Topography swisstopo Seftigenstrasse 264
P.O. Box
3084 Wabern
+41 58 469 01 11


Relevant authority

Improvement service

Federal Office of Topography swisstopo

Seftigenstrasse 264
P.O. Box
3084 Wabern

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