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Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / Populate Lookup Field ...
Microsoft Dynamics CRM (Archived)

Populate Lookup Field via Web API

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Posted on by JDMCRM 1,797

Hi, 

First time attempting to push data to Dynamics 365 programmatically via the Web API. I need a little help with populating lookup fields. 

If I have the GUID available this isn't an issue. The following POST creates a new lead with the Currency set to Euro. 

{
"subject" : "newlead3",
"transactioncurrencyid@odata.bind" : "/transactioncurrencies(2817303a-a84c-e811-8102-3863bb341bf8)"
}

How can I achieve this if I don't have the GUID available, and my source data only contains the string value EUR? I imagine I need to lookup the isocurrencycode from the associated transactioncurrency entity and when a match is found return the GUID for the matched Record. Is this correct?

*This post is locked for comments

  • JDMCRM Profile Picture
    JDMCRM 1,797 on at
    RE: Populate Lookup Field via Web API

    Great, thanks for the help. That does what I'm after :).

  • Verified answer
    Andreas Cieslik Profile Picture
    Andreas Cieslik 9,267 on at
    RE: Populate Lookup Field via Web API

    /api/data/v8.2/transactioncurrencies?$select=currencyname,isocurrencycode&$filter=contains(currencyname,'Euro')

    Results in:

    {

     "@odata.context":"crm365.domain.dev/.../v8.2$metadata#transactioncurrencies(currencyname,isocurrencycode)","value":[

       {

         "@odata.etag":"W/\"361185\"","currencyname":"Euro","isocurrencycode":"EUR","transactioncurrencyid":"695a881a-7a4f-e811-910d-00155dd55305"

       }

     ]

    }

    which includes the required guid field

  • JDMCRM Profile Picture
    JDMCRM 1,797 on at
    RE: Populate Lookup Field via Web API

    Hi Andreas, thanks for the response. Is there an example of how this can be achieved? I'm testing using Postman.

  • Suggested answer
    Andreas Cieslik Profile Picture
    Andreas Cieslik 9,267 on at
    RE: Populate Lookup Field via Web API

    Yes, it is correct. You cannot set currency only by it's name. As you wrote you need to fetch the guid of it first.

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