Software Version Mismatch Warning
The Retailer software requires the same Retailer version to be installed on all PCs. You may see an Incorrect Software Version warning appear when opening Retailer for one of the following reasons:
- An error occurred during the Retailer Update on your Main/Server PC.
- Reinstall the Update on your Main/Server PC. If there are errors during the update, contact Tower Support
- You have updated your Main/Server PC without updating your POS/Office PCs.
- You need to install the update on ALL PCs after updating the Main/Server PC
- You have updated your POS/Office PC without updating your Main/Server first.
- You need to install the update on the Main/Server PC first then on any other POS/Office PCs that have not been updated
- You have opened Retailer on a POS/Office PC before installing the update.
- You need to install the update on the Main/Server PC again and then on any other POS/Office PCs that have not been updated. Do not open Retailer on a POS before installing the update.

The software version relates to the Retailer version, not your Windows OS version, such as Windows 10 or 11.