WHMCS Custom Field with character limit validation

[artaweb]

Hello guys,

I have a custom field for mobile numbers which is /([0-9])+/ 

Now I want to make it mandatory to 11 characters. Looked in whmcs documentation but no much info about it.

I would appreciate your insight. 

Thank you

[brian!]

2 minutes ago, artaweb said:

I have a custom field for mobile numbers which is /([0-9])+/  

Now I want to make it mandatory to 11 characters. Looked in whmcs documentation but no much info about it.

https://docs.whmcs.com/Custom_Fields#Regular_Expression_Validation

if it has to be *exactly* 11 characters...

/^[0-9]{11}$/

[artaweb]

Thanks Brian.