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ValidationError: Model requires an object_id

Question asked by dwebb_BCGISID on Jan 10, 2020
Latest reply on Feb 13, 2020 by dwebb_BCGISID

Most pressing question:


I'm working with the ArcGIS Python API for Workforce and basing my code off this example.


When I use `batch_add` the code works and it adds an assignment.


However, I do not want to add an assignment, I want to update an existing record from "unassigned" to "assigned" so I want to use 'batch_update'.  But when I use that I get an error which says, "arcgis.apps.workforce.exceptions.ValidationError: Model requires an object_id"


Does anyone know what that means or how to fix it?



Less pressing question:


For the 'workforce.Assignment' parameters, I get an error saying "arcgis.apps.workforce.exceptions.ValidationError: Assignment cannot have an empty location".  But the documentation on Assignment says location is Optional.  Does anyone know why it's required?  (This only happens when using 'batch_add' since 'batch_update' doesn't work.)




import arcpy
from datetime import datetime
import pandas as pd
from arcgis.gis import GIS
from arcgis.apps import workforce

param = arcpy.GetParameterAsText(0)

gis = GIS("<agol>""<user>""<pw>"## Credentials for dispatcher
item = gis.content.get("<itemid>")

worker = workerManager.get(user_id="<user>")

layer = gis.content.get("<itemid>").layers[0
features = layer.query(where="field_name = " + str(param), out_sr=3857).features

assignments = []
for feature in features:
            assignment_type="Update Assignment",