Purchase order authorization rule

Hi,

We have currently the purchase order authorization rule with Allow change after authorization set to ‘Within authorizer limit’ but we would like to change it to ‘Within Order amount’.

For PO’s that have a higher value then when it was authorized we need to revoke authorization and re authorize in order to be able to cancel lines.

For PO’s in status received this workaround is not possible since you cannot revoke authorization from received PO. We cannot figure out a way to cancel not yet received line from such PO.

Is there a way to work around such situation?

/Anna