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Can you unset field of type Option Set using CDS with a patch?

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Posted on by MrNappa

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I have an entity that contains a field of type option set. This value is not required. I'm trying to 'unset' from my app by calling:

Patch( Elements, LookUp( Elements, Element=ElementId ), { 'option set field' : Blank() } )

However, when this patch command is called the data is not modified.

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v-monli-msft Microsoft Employee on at

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Hi @MrNappa ,

Will the issue solve after you set the Option Set field with existing value?

Regards,

Mona

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MrNappa 241 on at

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No. Take for example the following test I did:

Field definition:

Test code:
When you select the 1 or 2 and click the 'Patch' button, the value updates to the selected value. But the 'unset' option does not work; it simply ignores the Blank() patch.

(btw, I know I can work around it by introducing an additional value to the option set that represents a 'not filled out'/'not set' option, but that feels redundant)

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