We raised the same to SAP and get the following answer.
The FM BS01_MM_QUOTATION_CREATE belongs to Bill of services which is
part of industry solution DIMP and can be used only if DIMP is
activated in SFW5 transaction. Please note that BOS solution offers
industry specific functionality related to services on the sales side
and activating DIMP just for using BAPI BS01_MM_QUOTATION_CREATE is
not recommended. Only if your business need demands should you look
into the option of activating DIMP.
I noticed that DIMP is not activated in DE1 system and hence you
cannot use BS01_MM_QUOTATION_CREATE