I have a record picker component in my form which show records of another application, and i have a record type filed relatedrequest in my application record type so when i select and save into relatedrequest field of my application request filed for multiple values it's showing not available, is it not possible to save multiple values . The fields is type of text and length of 4000 . I tried with integer field that time it only takes one value. Why it's happening even though the component have multiselect options we can't save it.
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Your field must be List of Text or List of Number type to store multiple values. A single Text field (even with 4000 length) can only store one value, causing not available for multiple selections.