Posted from Purchase Orders

This check box is automatically selected if the voucher was added as part of the posting process from the Purchasing module. If you are manually adding a voucher through the A/P Vouchers and Adjustments form, this check box is not available for selection.

If this check box is selected, you cannot delete the record. In addition, you can modify only some of the fields. Note that you can still manually distribute the transaction to re-allocate the G/L account amounts.