Total length of lock argument for table & longer than &

What causes this issue?

For each base table of the lock object which is to be locked a
<DS:TX.DDDOK_ENQU_ARGUMENT>lock argument</> is formed. For technical
reasons this argument may be only &V2& bytes long.
This limit was exceeded by the table &V1& that is part of this lock
object.

System Response

The action was cancelled.

How to fix this error?

Try to implement the lock via a table with a shorter argument.

Error message extract from SAP system. Copyright SAP SE.