Retail version not supported by this tool

I'm used a Dell OEM Win10 image that has been continually updated.  This last worked fine for 1703 image update, when I modified the image with Dell IA tools, is there any reason 1803 is different?  I'm using the current Dell IA tools 8.5.0.6.

Error message "Error: This is a retail version and is not supported by this tool" - It's not retail.  I'm not trying to blow 2+ days of configurations, setting, and a lot of research for a brand new image here and do it over again.  Any advice, please let me know.