Delete of tracking number when stated in code directly.
Delete tracking number in the FED_DEL table.
Marks FED_SHP.VOID='Y'
Removes record from FED_DEL table.

Process all records in table when called.
PO number is "handwritten" on the label in the ZPL
Only the REF is sent to FedEx in the official API request.
Added support SIGNATURE options Y,I,D,N,A
try adding support for international orders. was having a schema issue, not fedex site is down.
raw sample code with only minimal credentials changed.