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Use power automate to populate a look up field with a text field value

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Posted on by ahilisa

I have a custom entity that has an N:1 relationship with the Contacts entity. The custom entity captured data from a user through a web form.

I want to use power automate to update a look field on the custom entity which is linked to the contact entity. I have a unique identifying number on the custom entity which is also on the contact entity.

The look-up field will populate when the unique id is entered into the look-up field manually and I have also got it to work using power automate but only when I specify the GUID for the contact record and custom entity record.

How can I get power automate to populate the look-up field on the custom entity with the data that is entered in the custom entity text field when the record is originally created.

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RE: Use power automate to populate a look up field with a text field value

Hi ahilisa,

The value of Herdowner lookup field should be something like this: contacts(4fbf3c8c-4269-ec11-8943-00224809dce9). The 4fbf3c8c-4269-ec11-8943-00224809dce9 is GUID of the contact.

In your case, if the dynamic content(Flock/Herd Nu...) is the GUID of the contact, you could use this expression: concat('contacts(', Flock/Herd Nu..., ')').

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ahilisa 15 on at

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RE: Use power automate to populate a look up field with a text field value

Hi Steve,

I have updated the flow as you suggested and I am getting this error, any suggestions?

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Bipin D365 28,983 Moderator on at

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RE: Use power automate to populate a look up field with a text field value

Hi,

You will need to use List Rows to query contact table based on unique id value then map the lookup field on custom entity. Please see below post which is querying User record based on fullname, you will need to do same for contact -

community.dynamics.com/.../update-a-row-in-power-automate-with-name-rather-than-value

Please mark my answer verified if this is helpful!

Regards,

Bipin Kumar

Follow my Blog: xrmdynamicscrm.wordpress.com/

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Preeti Sharma 2,678 on at

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RE: Use power automate to populate a look up field with a text field value

Hi ahilisa,

If you want to fetch data from some custom entity based on some filter, you have to add a step to get that particular record from the custom entity. Once you get the record, set the fields value from the fetched record.

Hope this helps!!

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