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I am trying to use the returned ETag / the @odata.etag value from GET response and feed into http header while updating an entity(think of PUT/PATCH Customer endpoint) through POSTMAN(ARCA).

Can someone please share a screenshot or something which might be helpful.

I cannot find any resource that actually sheds some light on this issue that I am facing.

It gives me a response:

{
    "error": {
        "code": "",
        "message": "Could not validate the client concurrency token required by the service. Please provide a valid token in the client request."
    }
}
Hennes
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Samrat Dutta
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1 Answers1

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If the E.Tag is as follows:

E.Tag : W/\"JzQ0O2l0cW4vNm42NDNSTDVDN3lRLzVEZ1J1c2lYUlhwOExscsFgUEFxazhVQjg9MTswMDsn\"

then remove the escape character from E.Tag and add in header

If-Match : W/"JzQ0O2l0cW4vNm42NDNSTDVDN3lRLzVEZ1J1c2lYUlhwOExwcUFoUEFxazhVQjg9MTswMDsn"

Mithun Gajbhiye
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