No business document type exists for document; navigation not possible

What causes this issue?

The document data is inconsistent.
You tried to navigate from a document that points to another business
document. For this business document, an external system entry exists
but with no valid document type in your document.

System Response

Navigation is canceled.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.