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patching multiselect lookup field



I have two collections: A and B. I want for every rows in collection A to add a new item (first row of collection B) to multiselect lookup field of collection A. The item which i want to add to every rows of collection A is first row of Collection B (collection B has only one row).


I have no success with adding another item to multiselect lookup field. I tried something like this:


ForAll(A;Patch(A;MSLF: First(B)))


*MSLF is multiselect lookup field

Super User
Super User

Hi @PiotrJaniszewsk ,


Is there a problem to use an aditional collection called C ? 

ClearCollect (C,AddColumns(DropColumns(A,"MSLF"),"MSLF",First(B)));

And then to move the data to collection A (but you have to be sure that your MSLF column in A collection have the same structure as B column):

ClearCollect (A,C)


Hope it helps !

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