Domains must begin with a letter or a number and be between and characters in length Please check your entry and try again.

[messir]

Hi All.

My customers get this error " Domains must begin with a letter or a number and be between and characters in length
Please check your entry and try again. " when try buy hosting if choose "I will use my existing domain and update my nameservers " but domain not really purchase with my hosting service.

How I can resolve it?

 

Thanks

[brian!]

i'm not seeing any errors on your site when I try to repeat those steps...

it seems to work fine for all 3 currencies... the usual cause of that error is a missing domain price or a currency misconfiguration.

[messir]

Thanks for check my issue.

But let me show you screen. The domain name use my customer. But registered with another registar. So finally we got error

[messir]

Also get error - can't add domain.... Оные not save.

[DennisHermannsen]

Domain error-messages are not well written... That error can happen if the domain is already active on another client's account. Could you please check if that's the case? Or does it happen with all domains?

[brian!]

1 hour ago, messir said:

But let me show you screen. The domain name use my customer. But registered with another registar. So finally we got error

one of the other (bizarre) causes of that error is when "Block Existing Domains" is enabled in setup -> general setting -> ordering

https://docs.whmcs.com/Ordering_Tab#Block_Existing_Domains

Quote

Enabling prevents visitors mistakenly or maliciously ordering a new product with a domain name that is already pending, active or suspended in your system.

if that feature is enabled in your settings, and the domain being entered is already in your WHMCS with one of the above statuses, then WHMCS will throw that confusing error.

obviously, the specific error shown (about beginning with number/letter and being a certain length) makes absolutely no sense to either the customer or the WHMCS owner, but it's been that way for years and is one of the long standing bugs that I often go on about.

so if the setting is enabled, try disabling it and that should hopefully remove the cause of that error.

[messir]

2 hours ago, DennisHermannsen said:

Domain error-messages are not well written... That error can happen if the domain is already active on another client's account. Could you please check if that's the case? Or does it happen with all domains?

I joined as user via Admin panel to my customer. So I try add VPS service us his domain name....