Invalid item leading to selling on Facebook marketplace failure? Reach help center.

If you come across selling on Facebook marketplace failure due to an invalid item, then try reuploading the item or checking the prerequisites before uploading the stuff. You can also diagnose the issue using various steps that you can find by navigating to the support sites that'll assist you in weeding out the problem. 

Glitch in selling on Facebook marketplace option due to icon error? Dial support number.
Sometimes a glitch in the selling on Facebook marketplace option might occur due to the malfunction in the icon. Therefore, it'll be prudent to reboot the device and use the assistance that is available in the tech assistance sites or you can navigate to the help center to implement the tips that you can analyze after taking a look at the FAQs. 

Can't use selling on Facebook marketplace option due to net issue? Contact help team.
If you can't use selling on Facebook marketplace option, then you must use the assistance offered by the tech vids on Youtube where you get all the support steps that are presented by the tech experts free of cost. You can also try using the assistance of the help team by connecting with them through the chat mechanism. 

Failed to opt selling on Facebook marketplace due to interface error? Call support.
An interface error can Therefore, it becomes the need of the hour to use the assistance steps that'll ensure the removal of the errors. Therefore, to access these help steps, all you gotta do is to go to the tech consultancies and use their tips and tricks.