SAP Message WB2B140 - Parameter &1 of the FM is not correct (see long text)

Diagnosis
The following import and export parameters must exist in the functionmodule specified.
Import:
I_TKONN type TKONN
I_TPOSN type TPOSN
Export:
E_VALUE type C
E_REF_FIELD type C
In addition, no other parameters can be flagged as required parameters.