Time & does not have the format &

What causes this issue?

The characteristic value you assigned is not compatible with the
template defined for time entries (HH:MM:SS).

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?

Make your entry in the format "HH:MM:SS".
You can leave out the ":" in your entry. Your entry is automatically
converted to match the template.
Entry 132855 ---------> 13:28:55

Error message extract from SAP system. Copyright SAP SE.