SAP Message VY623 - Tolerance check not possible; Tolerance levels are not maintained

Diagnosis
During invoice verification, the system checks the entered items forvariances compared to the purchase order or goods receipt. Here, thetypes of variances are defined through a tolerance key. The systemallows variances within the limits defined by the tolerance valuessets.

System Response
Invoice verification cannot be executed correctly because the systemcannot check whether, for example, the amount entered is correct.Tolerance limits must be maintained in Customizing for the tolerancekeys used.

Procedure
Path in IMG: Materials Management -> Invoice Verification ->Conventional Invoice Verification -> -> Invoice Block -> Set toleranceLimits.