Invalid RIB object: budget address excluded from being assigned

What causes this issue?

The <DS:SIMG.FMBCS_FMRBDERIRO>derivation strategy for RIB objects</> has
assigned the value <LB>X</> to the field
<DS:DE.BURB_FLG_NO_RIB_OBJECT>NO_RIB_OBJECT</>. This means that you
cannot assign an RIB object to this budget address.

System Response

The RIB object (or RIB object index) cannot be created for the following
combination of <DS:DE.BURB_RBBLDNR>budget category for RIB</>, fiscal
year (or if applicable, fiscal year and year of cash effectivity), and
original budget address:
<LB>&V1&</><LB>&V2&</>

How to fix this error?

Depending on the transaction you are using you have at least one of the
following options:
Choose another budget address, if you want to assign a budget address in
the transaction "Process Single RIB Rule" (transaction
<DS:TRAN.FMRBRULE>FMRBRULE</>).
Assign the budget address to a revenue cover group in the transaction
"Process Single Cover Group" (transaction <DS:TRAN.FMCERULE>FMCERULE
</>).
If this invalid object assignment already exists, then you can remove it
by starting the transaction "Reconstruct Index for RIB" (transaction
<DS:TRAN.FMRBIDXREC>FMRBIDXREC</>) in productive mode.
Change the <DS:SIMG.FMBCS_FMRBDERIRO>derivation strategy for RIB objects
</> and assign the value <LB>" "</> to the target field
<DS:DE.BURB_FLG_NO_RIB_OBJECT>NO_RIB_OBJECT</>.

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.