Dialog type & meaningless for a collective search help

What causes this issue?

The search help in question is a
<DS:TX.DDDOK_SHLP_COLLECTIVE>collective search help</>. The
<DS:DE.DDSHDIATYP>dialog type</> defined for the search help, howver,
is only meaningful for <DS:TX.DDDOK_SHLP_ELEMENTARY>elementary search
helps</>.

System Response

INCLUDE DDDOC_CANCEL

How to fix this error?

Make sure that the sources of the search help are consistent.

Error message extract from SAP system. Copyright SAP SE.