How to solve: I have enabled the plugin EU VAT Number on the site https://app-6570e1c2c1ac186d70bd60eb.closte.com/. When I input the Lithuanian VAT (e.g. LT100003365518) code in the checkout VAT validation field, it shows invalid. It is working for any other country, like Latvia or Estonia, with valid VAT (e.g. LV40103575313 or EE101155634), and validation is passed.
How to solve this issue?
Please ensure that you are entering the correct VAT number.
If possible, please try the following solution:
– Enable Booster > EMAILS & MISC. > General module
– Change the Session Type in Booster options to WC Sessions / Standard PHP sessions
– Enable Read and Close option
Please try this and let me know if you need further assistance from us.
I am 100% sure the VAT number was correct. However, it seems like there was a global problem with the VIES service validating LT VAT numbers. Now, without any changes in settings, it’s working.