const storeControl = this.recordService.elements.storeLookup.api.innerComponent.innerComponent.formControl;
this.recordService.formGroup.controls.BRANCHID.valueChanges.subscribe(x => {
if(x){
this.recordService.formGroup.controls.SENDERSTOREID.setValue(null);
storeControl.setValue('abc');
storeControl.setValue('');
}
});