I originally tested Creative Cloud InDesign beefore purchasing.
I upgraded to Creative Cloud, uninstalled the test InDesign and Reinstalled the download from CC.
Every time I open InDesign an EasyCatalog window is asking me for a serial number? I have attempted to uninstall EasyCatalog without success.
How do I resolved this.
Moving to more appropriate forum so that experts can help on the same.
Have you tried deactivation EasyCatalog usiong the Extension Manager? And by all means, contact the vendor.