Inbound IDocs: IDoc number & invalid

What causes this issue?

The IDoc with number &v1& was to be given to IDoc inbound processing.
However, no IDoc with this number could be found.

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

Technical details:
Function module 'EDI_DOCUMENT_OPEN_FOR_READ' was terminated with
exception 'DOCUMENT_NOT_EXIST' or 'DOCUMENT_NUMBER_INVALID'.
Error number in table T100: &v2&
1st parameter of error message: &v3&
2nd parameter of error message: &v4&

System Response

How to fix this error?

Check whether the IDoc with number &V1& exists.

Error message extract from SAP system. Copyright SAP SE.