Bid Invitations (heirarchy)

Hello,

I am trying to load the Bid Invitation heirarchy from SRM5.0 to BW3.5, when i try loading the data, the load fails and give me an error message as below

Enter the characteristic as an external characteristic in the InfoObject

maintenance of the characteristic 0BBP_BIGURE . (InfoObject Maintenance

-> Tab Page Hierarchy -> Button: External Characteristics in

Hierarchies )

Diagnosis

The InfoObject has not been entered as an external characteristic for

the hierarchy basic characteristic 0BBP_BIGURE . A characteristic can be

used as an external characteristic in hierarchies if it has been entered

as an external characteristic in the InfoObject maintenance for the

hierarchy basic characteristic.

System response The hierarchy can not be activated or updated.

Procedure Enter the characteristic as an external characteristic in the InfoObject

maintenance of the characteristic 0BBP_BIGURE . (InfoObject Maintenance

-> Tab Page Hierarchy -> Button: External Characteristics in

I am not able to get what Characteristics should i add in the external characteristics. Kindly help if any one has worked on Bidding heirarchy

Thanks and regards