In this blog post, let’s learn about the error message “6637 It is not valid for a format flag to contain / (back-slash).” in InterSystems Cache & Ensemble and the description of the error message.
Error Message
6637 – It is not valid for a format flag to contain / (back-slash).
Error Details
It is not valid for a format flag to contain / (back-slash). The invalid format flag is %1.