Dear Experts, I need to put a validation in TAX number 3

[Former Member]

I need to put a validation in TAX number 3. first of all tax number 3 is allow only 15 digits. and first 2 digit should be customer GSTIN.

[MSAP]

Dear Arjun,
I am not sure if you are a developer. But I would recommend you to take help from JAVA person to validate GST No from GSTN portal instead writing validation in customer & vendor master.
Sometime if you have written correct validation even then at the time of GSTR filing there are chances that some GST nos are wrong.
Example in places of 5 someone has written 1

[Former Member]

Thanks Mukesh,

I have solved issue with BADI in customer master.

[Lakshmipathi]

If your query is answered, please go through this blog