Ad hoc approvers disappearing in case of changes made to the shopping cart

Hi All,

We have a scenario for a particular account assignment category, the approvers are not determined through the n-step approval badi but are added manually in the approval preview.

In the case when requisitioner changes any data in the shopping cart which is in awaiting approval or which is rejected by any approver and present in requesitioner inbox, the manually added approvers are disappeared and no approvers are displayed in the approval preview and when the workflow is retriggered with no approvers.

Is there anyway we can store the manually added approvers in the case when the requisitioner changes the cart.

Thanks and Regards,

Asha