Start marker &1 and distance do not match start point &2 &3 (LRP &4)

What causes this issue?

You have entered values for the start point, start marker, and start
distance that do not match.

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?

Check the referenced technical object to ensure that a valid linear
reference pattern (LRP) has been defined and the marker used has been
included.
Use the input help to obtain matching values for the MARKER_START or
START_POINT fields.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.