Adding a non-ISO currency to AX 2012 RTM

Hello All,

I am looking to add a non-iso Currency to AX 2012 RTM, but am running into a slight issue.

I have followed the step here https://technet.microsoft.com/en-us/library/hh351822.aspx, but am running into an issue at step 4 where I need to enter a name and symbol for this code.

If I try to enter and Non-ISO code into the Currency Code: field (Currency.CurrencyCodeISO), I get an error saying "The value 'xxx' in the field 'Currency Code' is not found in the related table 'ISO currency codes'. The currency code field is also required on this form.

This leads me to believe that the only way for me to enter an non-ISO currency into AX, is to insert a record into the ISOCurrencyCode table. Is this correct, or is there another way I can enter in a non-ISO currency code?

Also, if the only way is to insert another record into the ISOCurrencyCode table, are there any potential issues I could run into?

Thanks,

Phil