Provider does not support transfer of miscellaneous plan data

What causes this issue?

You tried to initiate a data transfer to a provider including data on
miscellaneous plans. However, in the partner profiles for this provider
(transaction WE20) you assigned the IDoc type <ZH>&V1&</> to the
message type <ZH>BENREP</> (<ZK>Benefits: Participation report</>).
This IDoc type does not include information on miscellaneous plans.

System Response

The system does not allow you to transfer the data with the current
selection.

How to fix this error?

You can do either of the following:
IF &V1& EQ 'BENEFIT1'
Deselect the <ZK>Miscellaneous plans</> indicator and transfer the IDoc
with information on health plans only.
ELSE
Deselect the <ZK>Miscellaneous plans</> indicator and transfer the IDoc
with information on health plans and/or savings plans only.
ENDIF
If the provider <ZH>does</> support the transfer of information on
miscellaneous plans, assign the IDoc type <ZH>BENEFIT3</> to message
type <ZK>BENREP</> in IDoc Customizing (transaction WE20).

Error message extract from SAP system. Copyright SAP SE.