Is there any way to override transaction price book to default when creating it from Salesforce

Summary:

Is there any way to override transaction price book to default when creating it from Salesforce

Content (required):

With many to one pricebooks mapping of Salesforce and CPQ respectively, transaction gets created with pricebook which is getting passed from Salesforce, is there any way to override the _price_book_var_name of transaction while creating it from Salesforce. Tried updating it from Opportunity import xsl with <_price_book_var_name><xsl:text>_default_price_book</xsl:text></_price_book_var_name> but getting following error

"During commerce integration Process ID: XXXXXXXX, Name: Opportunity Import Cannot select different price book from the one already in transaction."