An error occured for the business object &1 &2

What causes this issue?

An error occurred when indexing business object &1 &2.

System Response

The indexing of the business object &1 &2 was cancelled.

How to fix this error?

Contact your system administrators.

Procedure for System Administrators

For detailed information, see the spool list. To do this, you may have
to increase the log level for the business object in question in
Customizing and repeat the indexing. To access Customizing for business
objects, use transaction COM_SE_ADMIN and choose <LS> Goto ->
Customizing</>.#########################################################
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Error message extract from SAP system. Copyright SAP SE.