Defect field mapping error from SAP and QC v12.01

Hi Team,

QC v12.01 

Error in Integration of Defect Module of HP QC with SolMan 

During Defect Integration, when we try to do "Field Mapping" in QC, getting the below error message.

"The number of required defect fields in Quality Center is different from the number of required support message field in Application; Make sure the number of required fields is equal in both systems before you continue"

Once clicked "OK" to error message, there are no SAP Fields listed on both 'required fileds' and 'Non-required fileds' Columns.

Any solutions to resolve this issue?

we have made all changes at both SAP and QC side, also checkec below suggestions,

disconnecting the SolMan Project from QC Project and reconnected again.

1. SPRO -> SAP Solution Manager -> Scenario-Specific Settings -> Third Party Integration -> External Service Desk
2. The required settings are done in SPRO -> SAP Solution Manager -> Scenario-Specific Settings -> Third Party Integration -> SAP Quality Center by HP -> Integration Defect Management.
3. implemented the SAP note 1289155.
4. First customize External Service Desk entries in the Customizing tree. (I think its done)
5. If you still get the same error then check the service ICT_SERVICE_DESK_API  it has to be released and have the same communication user assigned as a service ICT_SERVICE_DESK_API_MQC.

If possible could you remove the external service desk from in

Transaction ICTCONF and redefine it again?

Once you have done that please do the following steps:

1. - Go to the Solution Manager project
2. - Open the dialog to connect to a QC project
3. - Confirm the dialog.