I am looking for table(s) that links a QM Control plan to a business partner(s)

I am looking for table(s) that links a QM Control plan to a business partner(s) - business partner created with transaction BP ?

I have checked the following tables but no luck

QPCPD_CPLAN

QPCPD_LINK

CRM_JEST

CRM_JSTO

BUTOOO

Please could any one help me with this.