Hi Avinash
You could use Attachment (on Product Order for example) to hold the image or PDF of the receipt. However, it does seem that that receipt (whether for payment or goods received) as a business entity is missing from the Open API model, and, as far as I can tell, even in the Information Framework (the SID). It is dealt with in other areas of TMF assets, such as eTOM and the functional framework.
I'm not sure what can be done about this at the moment, I might consider opening a change request.
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Jonathan Goldberg
Amdocs Management Limited
Any opinions and statements made by me on this forum are purely personal, and do not necessarily reflect the position of the TM Forum or my employer.
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