Assignments to cube fields are only deleted for complete cube information

What causes this issue?

You want to compare planning scenario fields and info cube fields. This
means that assignments to info cube fields that no longer exist are
deleted. Not all the necessary information about the info cubes used
has been entered.
The unidentified cube fields must be regarded as being missing and then
deleted. To reduce maintenance when configuring the BW link, cube
fields in field assignments are only deleted if the information about
the info cubes used in your planning have been deleted completely.
This is not applicable when comparing planning scenario fields or
periodicities that are new or no longer required.
There are two causes for the present situation:
The <DS:TRAN.SM59>RFC destination</> for the BW system was not
specified.
Not all the relevant info cubes have been entered for the periodicities
that are used in your planning.

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

How to fix this error?

If you want to delete the assignments for cubefields that no longer
exist, select all the info cube to be used (for example, RFC
destination, info cube name) and choose <ZK><PF>Read infocube
information</></>.
If you want to delete infocube field assignments without specifying an
infocube, choose <ZK><PF>Remove field assignments </></>.

Error message extract from SAP system. Copyright SAP SE.