Call Ecc BAPI into CRM, which does not exist in CRM

Hi gurus,

i want to call the ECC bapi "BAPI_QUOTATION_CREATEFROMDATA2" into the CRM program. but the problem is this BAPI is not exist in CRM.

my requirement is to create Quotation in ecc from report in CRM. so can u please help me to find the solution.

Thanks,

Mann.