Preventing special characters in phone number field at checkout

[JuttaT]

Hi,

Currently the Shopify checkout gives an error message if letters are used in the phone number field, however it does allow special characters such as ( ) + and so on.

This is problematic in terms of ensuring consistency for processing our orders.

Is there a way to prevent users from adding in special characters?

Thanks!

[Urban_Broccoli]

I also need help with this. It seems to be pretty locked down by Shopify.

Our shipping software no longer accepts (), - or + which means I can no longer bulk print without changing this.

[snelsontt]

Also looking for answers on this, our shipping company cant process the special characters in the address, any word on how to prevent this all together?