If you enter a registration code but the "OK" button remains grayed, please double check the following:

1. Make sure you have installed the latest version of the plug-in.  You can download the current release any time from the Downloads page.
2. Make sure you are matching the correct registration code to the correct product, particularly the Savvy series.
3. If you purchased a student version (registration begins with "A"), it will only work with an E series, free educational license of VectorWorks.  You can upgrade to a full version of the plug-in online.
4. If copying and pasting in your registration code, make sure there are no spaces or carriage returns at the beginning or end of the field.  If you use the arrow key to move to the ends of the field, you may catch the extra characters.
5. The code is case sensitive.
6. All "0" are zeros. (Except for the Savvy Section product code, SO.)
7. Make sure your Vectorworks seat registration is correct.  In your plug-in registration, nnnn-nnnn-XXXXXX-nnnn, XXXXXX should match the last six characters of your Vectorworks serial number.
8. Make sure your plug-ins are installed correctly.  They should be in a subfolder of your user plug-ins folder.