blanket purchase agreement not visible in purchase requisition

Summary:

blanket purchase agreement not visible in purchase requisition

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I have created a BPA with category type. In purchase requisition source agreement type was first not visible. Through sandbox i enabled the same. When i am selecting BPA and providing the BPA number it is not found. can anybody suggest what i am missing, I have put the correct supplier, line type,Item description.

Again in ASL when i am trying to add source document as BPA, the source type LOV is only showing contract type agreement. BPA is not available as source type.