Dear Team,
I have created a Sharepoint, in that we have field called IBAN. Based on the country the IBAN number will get changed For e.g IBAN number for Spain 20 characters, IBAN number for Germany 22 characters, IBAN number for Denmark 18 characters.
We have choice column DataCard as FNC. If we select FOG(Germany) in the IBAN column, the maximum characters should be 22, if we give more than 22 then the IBAN field should not allow or it should an error message. Screenshot for your better understanding. Pls help me with the condition.

Thanks,
Jaleel Ahmed