Receipt Receivable account same as Invoice Receivable account generated by SLA

Summary

How to get same Receivable Account generated by SLA for Invoice is credited at the time of Receipt/CM application

Content

We have SLA modified to construct Receivable account at the AR Invoice level. At the time of Receipt application to Credit Memo/Receipt, application crediting the Receivable account from invoice distribution NOT the one generated using SLA. We have tried Business Flows but no use as related sources (SLA generated receivable combination) are not available in SLA. 

We understand that if we enable Multi-fund accounting this can be achieved but documentation says that feature is only for Public Sector.