SAP Message M8478 - Price too high (tolerance limit of & & exceeded)

Diagnosis
The price (value of the credit memo divided by the quantity) varies toogreatly from the net order price.
INCLUDE MM_IV_MELDUNGEN OBJECT DOKU ID TX

System Response
The system has found that the value of the credit memo exceeds theexpected value (credit memo quantity x net order price) by more thanthe tolerance for price variance set in Customizing (&V1& &V2&).

Procedure
Check your entries are correct and make any necessary changes. If youpost the document in spite of the variance, the system makes theposting and the relevant account movements. The document is notblocked.
Copied from 082;