not up to scratch and not up to snuff

not up to scratch

Not acceptable or satisfactory; not attaining a particular standard. Your papers have been very good, but, frankly, this one is not up to scratch.
See also: not, scratch, up

not up to snuff

Not as good as what was expected, required, or demanded; not satisfactory or adequate. Jim, I know you've been going through a tough time since your wife passed, but these reports just aren't up to snuff. I used to eat there all the time, but to be honest, their food hasn't been up to snuff recently.
See also: not, snuff, up

not up to scratch and not up to snuff

Fig. not adequate. Sorry, your paper isn't up to scratch. Please do it over again. The performance was not up to snuff.
See also: and, not, scratch, snuff, up