Why facebook messenger says some message couldn't be sent before messenger was closed ?

[Sam_93]

I don't know but whenever during using messenger I lock my screen or start using another apps messenger gives me error like cant refresh list or couldn't update list . Is it normal or i have to change some settings of mine ? Is my background data disabled or what ? But i get whatsapp messages smoothly .

 

[nemov888]

I would go into settings and make sure you have messenger with permission to run in background....otherwise, keep it on screen until the message is sent...thats all I can think of mate.

 

[Sam_93]

messenger doesnt ave any option to allow it to run in background . while some apps have on-off toggle. but today encountered another issue . microsoft push server error .