IDC rule exists but IDC not configured for the chart of accounts

What causes this issue?

You have specified an indirect cost (IDC) rule in the grant master,
but the configuration required for the IDC program has not been
completed. The GL accounts listed in the IDC recovery section of the
grant master are incomplete.

System Response

A warning message is issued.

How to fix this error?

Maintain the <DS:TRAN.GM_COA>IDC configuration settings</>.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.