Oh I know that feeling. We got in hot water because the codes were 6 digits long and security decided we needed to make them eight digits.
We pushed back and initially they agreed with us and gave us an exception, but about a year later some compliance audit told them it was no longer acceptable and we had to change it ASAP. About a year after that they told us it needed to be ten characters alphanumeric and we did a find and replace in the code base for "verification code" and "otp" and called them verification strings, and security went away.
We pushed back and initially they agreed with us and gave us an exception, but about a year later some compliance audit told them it was no longer acceptable and we had to change it ASAP. About a year after that they told us it needed to be ten characters alphanumeric and we did a find and replace in the code base for "verification code" and "otp" and called them verification strings, and security went away.