How To Fix WSTI_MM07I003 - Value &1 in count date field has incorrect format

SAP Error Message - Details

• Message type: E = Error

• Message class: WSTI_MM07I - BAdI Implementation Messages MB_PHYSINV_INTERNAL

• Message number: 003

• Message text: Value &1 in count date field has incorrect format

What causes this issue?

The value &V1&, which is specified in the <LS>Count Date</> field
(ISEG-WSTI_COUNTDATE), does not have the correct format.

System Response

The system cannot post this inventory document item.

How to fix this error?

The value must be entered using the format YYYYMMDD (Y = year, M =
month, D = day). This is an internal error that you will not be able to
correct yourself. Notify your system administrator.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.