I Created a legacy application and adef/cdef files and it fully worked well with on api provided by ModemServices. Now, I want to add a second api provided by ModemServices and when compiling it doesn’t work variables defined in api1_messages.h & api2_messages.h. I’m using ifgen to generates these files from my apis and in my main.c I include all necessary files generated by ifgen. What can cause this problem? and How can I resolve this ? Is it possible to implement multiple clients in one application?