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I have set the instAssCod to A for INST_ASS_COD_ASSIGNED. Why did I receive non-assigned instruments in the instrument list response?

April 26, 2017instrument instruments list non-assigned Response

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I have set the instAssCod to A for INST_ASS_COD_ASSIGNED. Why did I receive non-assigned instruments in the instrument list response?

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The application request ‘Xetra Inquire Instrument List’ is for requesting instrument data on exchange level. If instAssCode has value ‘A’ the member receives all instruments that are assigned to him. (request on member level – no validations on subgroup level are performed) This is required e.g. to retrieve ticker information. To receive only instruments a subgroup is assigned for, the application request ‘ Xetra Inquire Instrument Group List’ and ‘Xetra Inquire Current Instrument Group List’ can be used.