Header PPM/PDS &1 and sub PPM/PDS &2 have different calendars

What causes this issue?

You have defined a different calendar for the sub production process
model (PPM) or the sub production data structure (PDS) &V2& than for the
header PPM/PDS &V1& of the PPM/PDS hierarchy (&V4& instead of &V3&).
This can cause the system to determine different receipt due dates/times
(during disaggregation, for example) for the orders of the same
<DS:GLOS.6AB4DFFAC543534DA4E7410C42EB1625>order group</>. In this case,
problems may arise during
<DS:GLOS.CBF4EC9D3BB4A04AA9634EEE30B29632>aggregated planning</> in
Supply Network Planning (SNP) and when transferring the order group to
the ERP system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use calendar resources in the header PPM/PDS and it sub PPMs/PDSs with
the same factory calendar.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.