Follow the instructions below to ensure that it appears without any errors
Go to your Twitter account
Open the profile page - the username appears below your name
Copy it without the @ sign.
We have two types of accounts on Facebook (personal account - page)
First: personal accounts:-
Your public profile username is the same as your timeline.
From your Facebook profile, click your profile picture in the top right.
Click on Settings and Privacy.
Click on Settings.
A page appears with the general profile settings, in front of the username, you will notice the full account link.
Just copy the username which is the part that follows this link facebook.com/ after the back dash sign - as it appears in the image.
Copy the username without the dash mark.
Open the page in a web browser
You will notice that the full page link will appear.
Just copy the page ID only, which is the part that follows this link facebook.com/ after the back dash - as shown in the image.
Copy the ID without the dash sign.
Log in to your Instagram account
Click on the profile picture
A menu will appear - click on "Profile"
A page will appear with the username on top of it - next to the "Edit Profile" button.
Copy and paste it into the "Instagram username" field in the app settings on your store.
And so on other social media accounts
Just copy the username without any tags or links.