Error on SAP "This GRPO has items from PO which were marked for store"

Error on SAP "This GRPO has items from PO which were marked for store"

Product version:          

iVend 6.6 with SAP Business One

Problem statement:

Purchase Order is Marked for “For Store” in SAP. SAP is not allowed to create the GRPO will show error
“This GRPO has items from PO which were marked for store”.

Proposed Solution/Workaround:

SAP does not allowed to Create GRPO. Goods Receipt PO Must have to create from iVend on the store side if PO is marked for the “For store“ in SAP.