I made a skill called (in french) "capitaine rhum". That could be pronounced in "cap'tain rhum" also (and I prefer the 2nd prononciation, but both are ok with me).
I tried "capitaine rhum" and "cap'tain rhum" as invocation name. And both are not detected when testing with a simple "alexa, lance xxx"
So I tested more and I noticed that when I switched "rhum" to "rome" (same phonetically in french) and "capitaine" to "captaine" it was working.
So I finally submitted with "captaine rome" as invocation name (the only combination that worked) and my submission has just been rejected : (email content below)
Your skill does not meet invocation name requirement(s) listed below:
#7: Your skill does not meet our invocation name requirements for formatting. The invocation name must contain only lower-case alphabetic characters, spaces between words, possessive apostrophes, or periods used in abbreviations. Other characters like numbers must be spelled out.
Actual Invocation Name: captaine rome
Expected Invocation Name: capitaine rhum
So I am blocked.
Please help ;-)