# Enterprise Communication Interface (ECI)

## eci_del_cns

### Description
ECI function to read refine, aggregate or constraint relation records.
### Input parameter
parentEntNam
string | Name of parent entity for relation (entity 1)
parentWdgNam
string | Widget name of parent entity
parent WdgExt
string | Activate system fields on parent list (only available for lists): on: activate system fields off: no system fields
parentWdgMod
string | Widget mode for parent widget: list: widget is a list form: widget is a form bvb: widget is opened by bvb userexit
actionMode
string | Action mode: int: interactive mode bat: batch mode
parentSelFld
stringlist | Field names for selection of parent record
parentSelVal
stringlist | Query values for selection of parent record
relVieNam
string | Relation view name or constraint name
relWdgNam
string | Name of constraint widget
relWdgExt
string | Activate system fields on relation list: on: activate system fields off: no system fields
relWdgMod
string | Widget mode for relation widget: list: widget is a list form: widget is a form bvb: widget is opened by bvb userexit
qryFldNam
stringlist | Names of fields of query
qryFldVal
stringlist | Values for query condition
deleteMode
string | Delete mode: off: do not empty the trash on: empty the trash after deletion of record
### Output parameter
iDelNum
string | Number of deleted records
iSelNum
string | Number of selected records