Vehicle Migration Using Idocs

Hi,

We want to migrate Vehicle data from legacy systems to SAP CRM 7.0, using idocs of type CRMXIF_PRODUCT_INDOBJ_SAVE01.

While testing we are getting the following error:   ID type has errors or does not exist.

While debugging, we find that the error is in class CL_ALTID_PRODUCT_SERVICE, method GET_GUID_FROM_ALTID_SINGLE. The structure

  is_altid_fields_detail in the above mentioned method does not have the value for the alternative id, even though we are passing it to the idoc.

Please help, resolve this issue as it is very urgent to get a solution.

Any help would be greatly appreciated.

Cheers!

Mike