As your needs change, you may find it necessary to modify a formula. You can do this by selecting the formula you want to edit and modifying it as needed.
When you finish editing the formula, press <Enter>. The Recipe Builder automatically recalculates all recipe formulas in the order they occur.
If the Recipe Builder cannot recalculate a formula (for example, when one or more variables referenced by the formula are undefined) an error message box appears displaying the following text:
Recalculation failed at item #x. Error xxxxerror_text
The Recipe Builder also stops recalculating all formulas that come after the incalculable formula. The following figure shows an example of this and how to correct the error.
Recalculating Formulas
You cannot change a recipe item with a field type of A_ and a string formula to an F_ field. If you attempt to do this, the following error message appears:
Checking this item. Only F_ and A_ fields are allowed.
