Hi ,
I have found the cause of the issue for this error message WE216.
This happened because if we want to configure 14 digit EAN code , then we have to maintain number range of only 13 digit in SPRO. The last digit will be as per "check digit algorithm".
This is when you are going to use Check digit algorithm functionality.
If you are not using "Check digit algorithm functionality", then configure full 14 digits as system is simply going to accept whatever number you input.
Thanks.