Error when deleting a field in Custom Formatter

When customizing a format, deleting a field may trigger an error. This occurs when another field in the format references the field you are trying to delete. To resolve this, remove the reference from the referencing field before deleting the field, or delete the referencing field first.
The Custom Formatter lets you create fields that reference other fields in the format. If you try to delete a field that another field references, you get the following error:
Cannot delete because it is being referenced by the property
.
For example, on the Billing Worksheet report, the
Total Billed
field is a calculated field that references both the
Billed Amount
field and the
Progress Billed Amount
field. Its formula is:
={GroupFooter4.Detail_BilledAmount} + {GroupFooter4.Detail_ProgressBill}
If you want to delete the
Progress Billed Amount
field, you must first either remove the reference to it from the
Total Billed
field's formula, or delete the
Total Billed
field first.