It is not possible to merge the progress of two or more games into one.
Use these steps to repair file permission settings for the game folder and all enclosed files/folders.
Information about common payment issues and troubleshooting steps
This warning displays if you don't have enough available memory on your system to use your current settings.
Troubleshooting for Warcraft III: Reforged crashing and freezing issues
How to save Classic Warcraft III profiles into a Wacraft III: Reforged account
How to install Warcraft III or Warcraft III: Reforged and troubleshooting steps for technical issues
Troubleshooting steps for latency and disconnections in Warcraft III: Reforged
Where to locate the Warcraft III Campaigns folder and troubleshooting for technical issues