How To Fix SFB539 - Structures are not valid at this point in the formula

SAP Error Message - Details

• Message type: E = Error

• Message class: SFB - Messages for Formula Builder

• Message number: 539

• Message text: Structures are not valid at this point in the formula

This message is designed solely for use of the Formula Builder by
BRFplus!

What causes this issue?

In the current formula, you are using one or several data objects whose
type is not possible in the current usage context. The following rules
apply for use of data objects in a formula:
The result of the formula must be of the Element type.
Data objects that are used as operands in the formula must be of the
Element type.
Data objects that are used as parameters of a formula function must
exactly match the type of the parameter (identical DDIC binding). This
can also be a structure.

System Response

The formula must not be activated.

How to fix this error?

Ensure that the data objects used by the current formula expression
match the rules listed above.

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.