IC Nav Bar button for Complaint Dispute transaction

Hello Experts,

We're trying to create a nav bar button to start the Complaint Dispute transaction. We're able to get the button to work when we do not have any confirmed business partners. However when we do have confirmed business partners we get a pop-up asking us to "Select Transaction Type" - however no transactions are presented to select. In this pop-up, the F2 component is BTFOLLOWUP and the view is BTFOLLOWUP/ProcType.

Our logical link on the Nav Bar is defined as below:

Logical Link: ID ZC_BT_COM

Type: Work Center

Target ID: TBT120MIPC

Parameter: ZMDC

Parameter Class: CL_CRM_IC_NAV_BTCREATE

Icon Name:

Title: Invoice Dispute Test

Description: IC Invoice Dispute Test

Any suggestions would greatly appreciated!

Regards,

Tom Halloran