Custom field label's translation & hooks

[waverider]

Hello,

 

1. Is it possible to translate custom fields names? (labels)

 

2. I've noticed a strange behaviour for hooks. I'm using WHMCS ver. 4.0.1 and I couldn't get a hook to work until I had deleted from server the file vatnumbervalidation.php (which I have enabled previously as commented in file).

 

I have a function added on same hook as the above file:

 

add_hook("ClientDetailsValidation", 99,"my_hook","");

 

From what I read, WHMCS supports multiple hooks on same event.

 

I assume that order number is the problem (99 above as example).

I tried everything: 0 as order number both in VAT validation and my hook, 0 in one file 1 in the other etc. Nothing worked. It was only "enabling" the VAT hook but not mines as well. Until I deleted the VAT file that contained the hook.

 

Now my hook works. But I need the VAT as well.

 

Thanks