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I am trying to create a list item with a multiselect field, according to the m365 spo documentation. It feels like I have tried all possible variations, but I cannot get it to work at all.

Is there any official guide as to the syntax for a multi-select value?

Giuseppe Maggiore
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1 Answers1

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Ok, for whomever bangs their heads against this in the future, the format for the seeds of a multi-lookup field is the following:

Id;Value;#

Where ;# is the separator. You may use # as a wildcard for a value, ending up with the following example where I am adding the related entities with Id 3 and 5 to the seed:

3;#;#5;#

or one single entity:

1;#

or three entities:

2;#;#3;#;#5;#

There seems to be a tiny bit of tolerance on the trailing value, but I did not experiment much with this.

PS: it works, and I am very happy, but dear reader know this: if you feel the need for some eye-bleach after reading this, you are not alone!

Giuseppe Maggiore
  • 11
  • 2