data demo; A = 5; B= '0'; c = A + B; run;
data demo; A = 5; B= '0'; c = A + input(B, 1.0); run;
You can't 'hide' that note without hiding lots of others. Your best approach is to use good programming to begin with.
As @Doc_Duke has suggested, rather than letting SAS do the conversion on the fly (resulting in a Note), use one of a number of functions to perform the conversion directly. There are functions that go both ways numeric --> Character and character --> numeric.
The INPUT family of functions (in @Doc_Duke's example) can yield a numeric, while the PUT family of functions yields character values.
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