Error Invalid Or Missing Wip Accounting Class When Releasing From Ascp Workbench

Hi All,

We are getting error as below:

Error: Invalid or missing WIP Accounting Class.
Possible causes:
1. You must specify a class or define a default discrete class.
2. The class must exist and be enabled in this organization.

3. The class must have the correct class type for this job.

I have checked Error Invalid Or Missing Wip Accounting Class When Releasing From Ascp Workbench (Doc ID 780672.1) but need information like when the value in the planning preference window is required.

I am surprise that in the same instance for Few org when that value is blank then WIP Mass load is working fine but for other org WIP Mass load showing that warning and Vice versa.