I've defined a brand new custom processing class, in order to evaluate some WT for labor cost, but when I try to call the PIT function, with param 2 set to P90 (my processing class in numbered with 90), the check give me an error message:
With regard to function PIT, specified processing class 90 does not exist Message no. 5P 414 Diagnosis You have specified a processing class which does not exist or is not permitted for the country grouping of the schema.
Is there any additional operation to perform?
Thank you in advance.