Manually-entered quantity in & is within the high-warning range

What causes this issue?

You have made an entry that is larger than the value calculated by the
system. The tolerance percentage defined for warnings in the conversion
group has been exceeded.

System Response

Warning; processing can continue.

How to fix this error?

Either choose <ZK>Return</> to accept the warning and leave the results
unchanged.
Or:
a. Change the manually-entered quantity so that it is within the
accepted ranges, or
b. Increase the percentages for tolerance checks in the conversion group
(Trans. O588):
Sample ranges: Examples:
High error range 10% 1100.00 and greater
High warning range 5% 1050.00 - 1099.99
No message sent 1000.01 - 1049.99
System calculated value 1000.00
No message sent 999.99 - 950.01
Low warning range 5% 950.00 - 900.01
Low error range 10% 900.00 and less

Error message extract from SAP system. Copyright SAP SE.