Digital signature only possible if accounting document originates from FI

What causes this issue?

The accounting document was not originally created in <LS>Financial
Accounting</> (FI); it originates from a different component. However,
the accounting document is assigned to an FI document type/number range
for which a digital signature is required.

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?

The accounting document must not be digitally signed, because it
originates from a different component.
Deactivate digital signature generation for the document type in
Customizing for <LS>Cross-Application Components</> under <LS>General
Application Functions -> Digital Signature -> Country-Specific Settings
-> Portugal ->
<DS:SIMG.SIPT_NUMBR_FI_V>Record Number Ranges for Digital Signature of
Invoices (FI)</></>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.