Issue in PO workflow

Dear Gurus

We are facing an issue in PO workflow that every PO is going in multiple inboxes of release authorities.

First let me explain what I have done

1.Created release strategy for PO.

2.assigned user in SWDD

3.Our workflow is on value basis i.e. different release authorities for 3 ranges of values.

4.Assigned user in PPOME and the id generated in PPOME is assigned to release codes/strategy in worklfow option of release strategy configuration.

Still what is happening if a PO of capital type has trigerred for 1st release then only the agent id which is assigned should get the PO in his inbox.

Instead all the agents which are assigned for other types of PO also are getting it in their inbox.

Please guide what I am missing.

FInd screen shot for your refernce