Field Service Mobile Agent App - Custom Date/Time Field Displays but Does Not Save Back to wm_task

[Rohitp484]

Hi Team,

I'm facing an issue with a custom field in the Field Service Mobile Agent App.

Environment

• Field Service Mobile / Agent App
• Table: wm_task
• Custom field: u_reschedule_preferred_date (Date/Time)
• Screen: Edit Work

What I configured

I added the custom field to the Field Service Mobile Input Form Screen.

Variable configuration:

Name: reschedulePreferredDate
Variable Type: Database Field

Variable Attributes:
FieldName = wm_task
FieldName = u_reschedule_preferred_date

Dictionary:

Table: wm_task
Field: u_reschedule_preferred_date
Type: Date/Time

Expected Behavior

When a technician updates Reschedule Preferred Date from the Agent App and clicks Save, the value should be updated on the wm_task record.

Actual Behavior

From Web UI

1. Update u_reschedule_preferred_date
2. Save record

Result:

• Value is saved
• Audit record is created
• Updated value appears in Agent App

✅ Works correctly

From Agent App

1. Open Edit Work
2. Update Reschedule Preferred Date
3. Click Save

Result:

• No update on wm_task
• No audit record created for u_reschedule_preferred_date
• Value does not appear in Web UI

❌ Does not work

Comparison with OOB field

The standard field estimated_end behaves correctly:

• Update from Agent App
• Audit record created
• Value updated on wm_task

✅ Works both ways

Troubleshooting already performed

• Verified field exists on wm_task
• Verified variable mapping
• Verified field type is Date/Time
• Confirmed Agent App can read/display the field
• Confirmed Web UI updates sync to Agent App
• Confirmed Agent App updates do not create audit records
• Compared configuration with estimated_end

Question

Has anyone successfully added a custom field to the Edit Work screen in Field Service Mobile?

Is there an additional configuration required in:

• Mobile App Builder
• Data Item
• Record Data Resource
• Save Action
• Action Item
• Function Definition

to make a custom field writable from the Agent App?

Any guidance on where the Edit Work save/update mapping is configured would be greatly appreciated.

Thanks!