You have the possibility to change the selected versions before sending the message. To change the product- or addon-version, click on the blue button behind the patch level field. If you would like to delete an existing add-on version, click on the small trash symbol. In a similar manner you can also select the SDK version from the drop down list. To delete an existing SDK version, select the empty entry in the drop down list. Should there be no product version maintained in the system data, you will have to maintain the product version in the message. Otherwise you will not be able to send the message, since the product version is a mandatory field in the message. The patch levels (in addition the build for the SDK) can be entered manually. Only numerical values are allowed here.