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headerMid

ID of the library message to display in the header. Do not use in conjunction with Header.

stringheaderMid (string)nullable

ID of the library message to display in the header. Do not use in conjunction with Header.

Possible values: Value must match regular expression ^(MS_[a-zA-Z0-9]{11,15})?$

Example: MS_abcdefg12345
headerMid
"MS_abcdefg12345"