Differentiating a GR document from a transfer posting document

Hi

I am a developer working on FMS project .

I have to create a view where I have to show some GI movement types as well as transfer movement types.

My code differentiates GR and GI documents based on debit credit indicator T156-SHKZG.

For GI , SHKZG = 'H' and for GR , SHKZG = 'S'.

But different transfer movement types have different values for this indicator.

For e.g. Movement type 311 ( Transfer posting within a plant between different storage locations ) has SHKZG = 'H'

whereas 322 ( Moving stock from unrestricted to quality ) has SHKZG = 'S' .

Is there a field which can be used to differentiate between a GR document and a TP document.

Please give your inputs. Let me know if you need any more information.

Regards

Varsha