The phrase "inconsistent messages" means that the information or signals being sent are contradictory or do not match up with each other. Full definition
Simply allowing the learners to rate, review and leave comments on training units gives them the ability to highlight inconsistent messages. (elearningindustry.com)
That sends inconsistent messages to the law firms. (inhouseops.com)
The three cabinet ministers in charge of Brexit — Boris Johnson, Liam Fox and David Davis — resemble «three blind mice» stumbling around the world with inconsistent messages on how to leave the EU, a Conservative former minister has said. (theguardian.com)