Remove space from permalink when using custom

I wish to use a custom field (business name) for my permalinks, I can set the business name to the permalink but it adds %20, e.g. my%20custom%20thing. Is there a way to remove the %20 and insert a dash instead?

Or is there a way I can get the username to be automatically generated from the business name field?

Or is there way when they type in their own username, that if there are spaces it either removes the spaces or gives a warning that there can be no spaces, only alpha and dashes?

Thanks

• This topic was modified 1 year, 9 months ago by GregW.
• This topic was modified 1 year, 9 months ago by GregW.