Two Source Documents in ASL

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We have a business scenario in which we have 2 source documents under an ASL --> Source Documents

Seq#1 Valid Quotation

Seq#2 Valid BPA (Consigned )

Since we have a valid quotation, it is generating the standard purchase order as expected. However, we also need to generate Consigned PO as well. As we have a valid BPA , we expect to generate a consumption advice. However, when we try the SI transfer to the consigned sub inventory, we are getting an error as

There Must Be A Valid Blanket Blanket Purchase Agreement

Our objective is to have the two source documents. We are not using the profile option: