SAP Message AP031 - Error - function cannot be executed DOCUMENTATION DiagnosisYou wanted to delete one or more sub-trees of a capital investmentprogram. However, a handling error has arisen during processing.System ResponseFunction not executed.ProcedureTo delete a sub-tree, proceed as follows:Position the cursor on the top item of the sub-tree you want to delete.Choose Select>.In this way, mark one or more sub-trees for deletion.Then choose Delete>.