Custom Fields

Custom Fields

Added in FileWave 12.7.0, Custom Fields will allow you to create custom inventory values and assign them to your devices in a 5 different ways. You will find this option under the Assistants menu called Custom Fields, from there you can either Import CSV or Edit Custom Fields. The Edit Custom Fields section has four different options you can chose from that will allow you to create custom fields and in turn assign those values to devices.

Important Note: You cannot use special characters in the creation of Custom Fields!

See Importing and Exporting Custom Field Files

Display Name

A user friendly name for your reference later

Internal Name

A system-wide variable that can be used in to reference these field values

FileWave will let you create an internal name which is the same as a FileWave inventory item internal name, for example %location% is already a built-in variable. When you are referencing custom values prefix them as below to avoid conflicts.

Method Prefix Example
MDM Profile custom_field %custom_field.location%
Scripted (Launch Argument or Environment Variable) CustomFields %CustomFields.location%

Provided by

This defines where the field comes from and also how it is updated.

Administrator

This option will allow you to set a custom field to your selected device(s) with a single or multiple preset values. This will be admin data so nothing has to be sent out to the device themselves. The setting "Assigned to all devices " will auto-associate this custom field to all devices in FileWave and any new devices that become enrolled. After picking the Data Type, you can select either a Default Value or if you would like to Restrict Allowed Values. If "Restrict allowed values" is selected then you can enter as many values as you like and then select one as default. If no value is selected as default then the value will simply be empty for the device. To modify or add these values simply right click on your selected device, select Edit Custom Field(s) Value, in the Field Value column double click and select the value from your list.

building code.png

edit custom field values.png

Client Script

Client Script will allow you to create and send out a script to associated devices. The output of this script will be what's written as the value for your custom field. You also have the option to set the output of the script as the custom field value only if the script has the exit code of 0. This option is for both macOS and Windows using the following script types:

Important: Python and Perl will need to be installed on your Windows clients. When installing Python and Perl make sure a system path is added to environment variables during install.

The Script will be executed after each verify, before sending inventory data.

Another option you have for script, is setting launch arguments and Environment Variables. (This option is also for any scripts you have in Desktop Filesets) So now any inventory field value can be plugged into a script.

edit custom field values 2.png

client script.pnglaunch arguments.png

environment variables.png

Dates must be ISO-8601 format (for instance: 2011-08-27T23:22:37Z).

The last line feed will be ignored to ease conversion, as commands like "echo" (bash) or "print" (python) add a line feed at the end of standard output.  Scripts are stored encrypted on the disk and the FileWave client will automatically decrypt them when it needs to run. The encryption used is RSA 2048 bits, with no symmetric key exchange (only RSA).

Client Command Line

This is used for existing Custom Fields that were made prior to FileWave 12.7.0 using a script to write to the custom.ini file on the client, this generally won't be used going forward for new custom fields. But if you have used custom queries with FileWave before, you will notice all of those are still present in the Custom Fields window. This will also allow you to now change the names from the deafult "custom_string_01" name for instance, to whatever you like.

LDAP

You will be able to pull attribute values from whichever directory service is being extracted in the LDAP tab in FileWave Preferences. These values are then assigned to your devices in FileWave so that you can query them at anytime. You will simply find the attribute you would like to query such as "department", which in this case is a String type. Your chooses are String, Integer, Boolean, Date/Time. If the value does not match the data type you will get a type conversion error flag when the value is pulled. Then the object class which is either user or computer:

ldap department.png

_How often does LDAP get scanned for updated values?
_Anytime a custom field is assigned to a device in FileWave or when the LDAP server is synced in the FileWave Preferences (this is either at the Refresh interval you can set or manually). However if a LDAP Custom Field is modified, your directory service will not be scanned right away, instead it will be scheduled to scan in 120 seconds; which is the minimum. (to change this time please contact FileWave support).  

ldap - active directory.png

Other LDAP Considerations:
If the value of the attribute you specified is empty or the attribute is not found in LDAP, then the value of the Custom Field will simply be empty.

In the case of an attribute that has multiple entries, all entries will be returned as encoded JSON array for string custom fields. For other types of custom fields the value would contain the type conversion error flag instead. The order of entries in the JSON array is not specified.

It may happen where no matching LDAP user or computer is found for a given client associated with LDAP custom field(s). In this case, the appropriate status for custom fields values will be set upon extraction ("Matching LDAP User/Computer Not Found"). Administrator has a global option to clear current custom field(s) value when such situation occurs. The option can be found in Preferences, Inventory tab, "Clear value if there is no match between client and LDAP user or computer" checkbox.

Importing from a CSV

This will allow you to change values of Custom Fields that have already been associated to devices in bulk. In the Import Custom Fields CSV window we provide a template that will let you choose not only which existing custom fields you would like in the template, but also how you would like to identify devices. Identifying devices in this section can be done with FileWave Client Name, Serial Number, Device ID, or FileWave ID.

It is important to remember that the only custom field values that will be changed are ones that have already been associated in FileWave to your devices. If you upload a CSV that specifies a value for a device that does not have the corresponding custom fields associate to it prior to upload, then you will see an error telling you those values were skipped. 

import from csv.png

import from csv 2.png

Running Built-in PowerShell Commands with Custom Fields

In FileWave, Windows PowerShell commands run from Custom Fields in a 32-bit context. Some built-in cmdlets require 64-bit PowerShell, so you need to launch the 64-bit executable explicitly.

The example below lists the members of the local Administrators group. If you run it directly as a PowerShell Custom Field, it may fail because FileWave starts it in 32-bit PowerShell.

Get-LocalGroupMember -Group 'Administrators' | Select Name

client script powershell.png

To run the command in 64-bit PowerShell, create the Custom Field as a BAT script and call the 64-bit executable first. Use the Sysnative path when the command is launched from a 32-bit process on a 64-bit Windows device.

C:\Windows\sysnative\windowsPowerShell\v1.0\powershell.exe "Get-LocalGroupMember -Group 'Administrators' | Select Name"
exit 0

client script powershell 2.png

If you need an entire script to relaunch in the native environment, use the following wrapper:

#############################################################################
# If PowerShell is running the 32-bit version on a 64-bit machine, we
# need to force PowerShell to run in 64-bit mode.
#############################################################################
if ($env:PROCESSOR_ARCHITEW6432 -eq "AMD64") {
    # write-warning "Take me to 64-bit....."
    if ($myInvocation.Line) {
        &"$env:WINDIR\sysnative\windowspowershell\v1.0\powershell.exe" -NonInteractive -NoProfile $myInvocation.Line
    } else {
        &"$env:WINDIR\sysnative\windowspowershell\v1.0\powershell.exe" -NonInteractive -NoProfile -file "$($myInvocation.InvocationName)" $args
    }
    exit $lastexitcode
}

# Main script
# Uncomment the next line to prove that we are always in 64-bit
#[Environment]::Is64BitProcess

# Your 64-bit script here.

#############################################################################
# End
#############################################################################

Importing and Exporting Custom Field Files

Starting in FileWave version 13.1 you can import and export custom field definitions. This is ideal for sharing powerful fields not built into standard inventory.

Always check a script before deploying to all devices. No, really, always!

Exporting:

  1. Open your (Assistance → Custom Fields → ) "Edit Custom Fields" UI

  2. Select one or more custom fields

  3. Press "Export" 

  4. Save the "FileWave Custom Fields.customfields" file

  5. Share online, or store for later

Importing:

  1. Download the custom field file

  2. Open your (Assistance → Custom Fields → ) "Edit Custom Fields" UI

  3. Press "import" Browse for file

  4. If the fileset contains a script, verify it is safe for your environment

  5. Associate the field with the needed device(s)

  6. You may also want to import custom field values 

See Custom Fields for more on assigning fields to devices, and importing custom field values.

Conflicts:

Custom vs Internal

FileWave will let you re-use an internal name that is the same as another inventory element.  If a Custom Field were added with an internal name of 'location', two 'location' internal names would co-exist the built-in internal name and the added Custom Field.

A prefix may be added to avoid confusion on matching inventory names.  The prefix varies depending upon the method being used to reference the internal name.

Method Prefix Example
MDM Profile custom_field %custom_field.location%
Scripted (Launch Argument or Environment Variable) CustomFields %CustomFields.location%


Custom vs Custom

If you are importing a custom field with an internal name that is the same as an existing custom field internal name you will see: 

custom field exists error.png

Just because you CAN overwrite an existing custom field doesn't mean that is a good idea. Best practice would be to import it as an additional field and resolve the conflict manually.

If the internal names are in use (Smart Groups, Inventory Queries , DEP auto) when you press "overwrite existing" you will see this telling you where it is in use:

internal_name-inuse.png

Custom Fields and Multi-Lined Outputs

Description

Custom Fields are an excellent way to provide additional reporting information on devices that are not included as standard inventory.  However, there are alternative methods to present this information where the output includes large amounts of text.

Information

Scripted Custom Fields values are based upon the output of the included script.  Although the information desired may be a list of items, sometimes it may be better to return an alternate response to that information and instead store the returned list of items differently.  As such, the decision then becomes:

As an example, consider 32-bit Apps on macOS 10.15 that are no longer supported.  The list of responses from such a script could be vast, would be practically unreadable and make searching responses awkward. Instead, consider perhaps counting the amount of Apps stored on a device that are 32-bit and return this as an integer.  Devices may then be targeted based upon the amount of 32-bit Apps that are installed.  

The required list of 32-bit Apps, though, still needs to be stored, preferably located in an easy to obtain location for analysis.

Details

Continuing with the example, as of macOS 10.15 Apple dropped support for 32-bit Apps.  Consideration was then required for listing 32-bit Apps on devices prior to upgrading to 10.15, such that software upgrades or alternate software could be implemented to replace those utilised.  For this example the chosen options are:

As an integer, Inventory Queries may be built to target the devices with the highest quantity of installed 32-bit Apps first and over time, as software is replaced, the count should come down, until all apps have been accounted for.

The FileWave Client log is easily accessible from the Admin console.  Additionally, by tailoring the output with desired key words, observing this information then becomes easy

The script could look something like the following, which consists of:

#!/bin/zsh

testline=""
linecount=0
logfile=/private/var/log/fwcld.log

function time_formatted {
python - <<END
import datetime

now = datetime.datetime.now()
year = '{:04d}'.format(now.year)
month = '{:02d}'.format(now.month)
day = '{:02d}'.format(now.day)
hour = format(now.hour)
minute = '{:02d}'.format(now.minute)
second = '{:02d}'.format(now.second)
mlsec = format(now.microsecond)
the_time = '{}-{}-{} {}:{}:{}.{}'.format(year, month, day, hour, minute, second, mlsec[:3])

print(the_time)

END
}

function printline {

	if [[ "$@" != "$testline" ]]
	then
		linecount=$(( linecount + 1 ))
		echo -e "\t$linecount: $@"  >> "$logfile"
	fi

	testline="$@"
}

echo $(time_formatted)"|main|INFO|CLIENT|Checking for 32bit apps" >> "$logfile" 

while read line 
do
	case "$line" in

		*".framework"*)
			printline $(echo "$line" | awk -F "\\\.framework" '{print "32bit app|Application|"$1".framework"}')
			;;
		*".app"*)
			printline $(echo "$line" | awk -F "\\\.app" '{print "32bit app|Framework|"$1".app"}')
			;;
		*)
			linecount=$(( linecount + 1 ))
			echo -e "\t$linecount: 32bit app|Other|$line" >> "$logfile"
			;;
	esac
done< <(mdfind "kMDItemExecutableArchitectures == '*i386*' && kMDItemExecutableArchitectures != '*x86*'")

echo $linecount 
echo -e "\tTotal 32bit apps found: $linecount" >> "$logfile"

Viewing the list output to the log file may be achieved via Client Monitor > Client Log and then by searching for '32bit app', which may look something like:

Pulling a log via client monitor requires a connection from your admin directly to the client. Client firewall, NAT, and Network ACL might prevent this from happening. Default TCP and UDP Port Usage

2019-07-20 15:46:31.373|main|INFO|CLIENT|Checking for 32bit apps
        1: 32bit app|Framework|/Users/rstehpens/Documents/Papercut MF Clent/mac/legacy/PCClient.app
        2: 32bit app|Framework|/Users/rstehpens/Documents/Papercut MF Clent/mac/legacy/client-local-install.app
        3: 32bit app|Framework|/Applications/BBEdit.app
        4: 32bit app|Framework|/Applications/Adobe Connect/Adobe Connect.app
        5: 32bit app|Framework|/Applications/RingCentral Meetings.app
        6: 32bit app|Application|/System/Library/Frameworks/CoreServices.framework
        7: 32bit app|Application|/System/Library/Frameworks/Carbon.framework
        8: 32bit app|Other|/usr/bin/vmmap32
        9: 32bit app|Other|/usr/bin/stringdups32
        10: 32bit app|Other|/usr/bin/malloc_history32
        11: 32bit app|Other|/usr/bin/leaks32
        12: 32bit app|Other|/usr/bin/heap32
        13: 32bit app|Other|/Users/rstehpens/Desktop/UserData/BigHonkingText
        14: 32bit app|Application|/System/Library/Frameworks/QuickLook.framework
        15: 32bit app|Framework|/System/Library/Input Methods/InkServer.app
        16: 32bit app|Application|/System/Library/Frameworks/DrawSprocket.framework
        17: 32bit app|Application|/System/Library/Frameworks/Scripting.framework
        18: 32bit app|Application|/System/Library/Frameworks/DVComponentGlue.framework
        19: 32bit app|Application|/System/Library/Frameworks/QuickTime.framework
        20: 32bit app|Application|/System/Library/Frameworks/AppKitScripting.framework
        21: 32bit app|Application|/System/Library/Frameworks/DiscRecording.framework
        22: 32bit app|Application|/System/Library/PrivateFrameworks/CoreMediaAuthoring.framework
        23: 32bit app|Application|/System/Library/PrivateFrameworks/vmutils.framework
        24: 32bit app|Application|/System/Library/PrivateFrameworks/CoreMediaPrivate.framework
        25: 32bit app|Application|/System/Library/PrivateFrameworks/CoreMediaIOServicesPrivate.framework
        26: 32bit app|Application|/System/Library/PrivateFrameworks/GraphicsAppSupport.framework
        27: 32bit app|Application|/System/Library/PrivateFrameworks/FWAVCPrivate.framework
        28: 32bit app|Other|/System/Library/Printers/Libraries/libConverter.dylib
        29: 32bit app|Other|/sbin/autodiskmount
        30: 32bit app|Other|/usr/sbin/pictd
        31: 32bit app|Other|/usr/lib/libnetsnmp.5.2.1.dylib
        32: 32bit app|Other|/usr/bin/qtdefaults
        33: 32bit app|Other|/usr/bin/qc2movie
        34: 32bit app|Framework|/usr/local/bin/iHook.app
        35: 32bit app|Other|/Users/rstehpens/Library/Android/sdk/build-tools/28.0.3/mipsel-linux-android-ld
        36: 32bit app|Other|/Users/rstehpens/Library/Android/sdk/build-tools/28.0.3/i686-linux-android-ld
        37: 32bit app|Other|/Users/rstehpens/Library/Android/sdk/build-tools/28.0.3/arm-linux-androideabi-ld
        38: 32bit app|Other|/Users/rstehpens/Library/Android/sdk/tools/mksdcard
        39: 32bit app|Framework|/Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
        40: 32bit app|Other|/Users/rstehpens/Scripts/bin/BigHonkingText
        41: 32bit app|Other|/Users/rstehpens/Downloads/Safari/BigHonkingText106
        42: 32bit app|Framework|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/Meeting Center.app
        43: 32bit app|Other|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/libopenh264-0.6.6.0.dylib
        44: 32bit app|Other|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/libcrypto-1.6.2.9.dylib
        45: 32bit app|Other|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/libssl-1.6.2.9.dylib
        46: 32bit app|Framework|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/atmsupload.app
        47: 32bit app|Framework|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/convertpdf.app
        48: 32bit app|Other|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/xml-31.0.0.1.dylib
        49: 32bit app|Other|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/cmcrypto-31.11.0.1.dylib
        50: 32bit app|Framework|/Users/rstehpens/Library/Application Support/WebEx Folder/T31_UMC/asannotation2.app
        Total 32bit apps found: 50

As can be seen, this list would be problematic as a returned value in a Custom Field, but the combination of a single response and the easily obtainable list provides a neater solution.

There are other ways the information could be stored or viewed.  Scripts ran through Filesets, e.g. Activation, Preflight, etc. store the output and may be viewed via Fileset Status.  These scripts have the difference in that they are usually ran just once, which may be better or worse depending upon the use case.  Additionally, scripts can include API calls to alter values in Administration Custom Fields.

Each required report may have different styles of output, but with some consideration, reporting may be made easier with smarter application.

Custom Fields in Client View

Starting in FileWave13.3.0 you can add any inventory field to the client view.

Steps to add new fields

  1. From the client view press the "Customize Columns" button
  2. Press "Add Inventory Field" for advanced inventory options
  3. Select any Inventory field (including custom fields)

Custom_client_column.png

When you select an Inventory Field it is not hidden the next time you open the 'Select Inventory UI'

Selecting a field that is already added will just close the UI, you can then open it again and select a field that is not already added.

You will notice the fields are limited in the "Select Inventory Fields" UI as compared to the QueryBuilder UI. This is because we are only showing direct 1:1 inventory fields.

Hiding the built-in "IP" column, and adding the Inventory: All Devices / "IP Address Column" does not change that IP client monitor uses.

Add FileWave Custom Inventory fields remotely using a Fileset

Description

Although these forms of Custom Field may still be used, since FileWave 12.7 additional new methods of Custom Fields have been introduced.  The newer form allow for backward compatibility to these older Custom Fields, but provide much greater flexibility and would be recommended.   Details on these may be found here: Custom Fields

Let's say you are using FileWave Integrated Inventory and you want to collect inventory data fields that FileWave does not report yet (you can check if you field is supported in the component list when you edit a query). The solution is to use the custom inventory fields introduced in FileWave version 7.0.0. There are 20 fields for each data type : String, Integer, Boolean, Date. Starting in version 8.5 the FileWave Client can accept input.

You can use this recipe to deploy a Fileset that is able to add the value you want based on a shell command. The script is already written for you and available in the Fileset, you only need to provide the command that outputs the value you want to add.

$ fwcld -custom_write -key <key_name> [-value <value_to_save] [-silent]

Ingredients

Directions

Built-into the FileWave Client is the ability to receive the output of a command and save that to the inventory DB.

  1. Determine what the output of your command is and the best place to save

String

Integer

Boolean

DateTime

custom_string_01

custom_integer_01

custom_bool_01

custom_datetime_01

custom_string_02

custom_integer_02

custom_bool_02

custom_datetime_02

custom_string_03

custom_integer_03

custom_bool_03

custom_datetime_03

custom_string_04

custom_integer_04

custom_bool_04

custom_datetime_04

custom_string_05

custom_integer_05

custom_bool_05

custom_datetime_05

custom_string_06

custom_integer_06

custom_bool_06

custom_datetime_06

custom_string_07

custom_integer_07

custom_bool_07

custom_datetime_07

custom_string_08

custom_integer_08

custom_bool_08

custom_datetime_08

custom_string_09

custom_integer_09

custom_bool_09

custom_datetime_09

custom_string_10

custom_integer_10

custom_bool_10

custom_datetime_10

custom_string_11

custom_integer_11

custom_bool_11

custom_datetime_11

custom_string_12

custom_integer_12

custom_bool_12

custom_datetime_12

custom_string_13

custom_integer_13

custom_bool_13

custom_datetime_13

custom_string_14

custom_integer_14

custom_bool_14

custom_datetime_14

custom_string_15

custom_integer_15

custom_bool_15

custom_datetime_15

custom_string_16

custom_integer_16

custom_bool_16

custom_datetime_16

custom_string_17

custom_integer_17

custom_bool_17

custom_datetime_17

custom_string_18

custom_integer_18

custom_bool_18

custom_datetime_18

custom_string_19

custom_integer_19

custom_bool_19

custom_datetime_19

custom_string_20

custom_integer_20

custom_bool_20

custom_datetime_20

macOS
/usr/local/sbin/FileWave.app/Contents/MacOS/fwcld -custom_write -key FIELD_TO_SAVE_TO -value INFORMATION_TO_SAVE
Windows (FW 15.4.2 and lower)
C:\Program Files (x86)\FileWave\fwcld -custom_write -key FIELD_TO_SAVE_TO -value INFORMATION_TO_SAVE
Windows (FW v15.5.0 or higher)
C:\Program Files\FileWave\client\fwcld -custom_write -key FIELD_TO_SAVE_TO -value INFORMATION_TO_SAVE

Date format may be supplied as either YYYY/MM/DDTHH:MM:SS or YYYY-MM-DDTHH:MM:SS.  E.g 2014/02/20T15:22:43 or 2014-02-20T15:22:43

Examples

Setting "custom_bool_13" to a false:

$ fwcld -custom_write -key custom_bool_13 -value 0
$ fwcld -custom_write -key custom_bool_13 -value false

Setting "custom_bool_13" to true:

$ fwcld -custom_write -key custom_bool_13 -value 1
$ fwcld -custom_write -key custom_bool_13 -value true
$ fwcld -custom_write -key custom_bool_13 -value something

Setting "custom_date_02" to a date:

$ fwcld -custom_write -key custom_date_02 -value 2014-02-20T15:22:43

To remove any key value, just leave off the -value parameter - so to reset the "custom_date_02" value back to it's default.

$ fwcld -custom_write -key custom_date_02 

Example: Saving admins to string 01

#!/bin/sh
# This script is a verification sample
# benm @ fw

now=$(date +"%Y-%m-%d-%H-%M")
echo "$now -- Writing current admins to inventory"

#writes the current administrators to an inventory field
currentadmins=$(dscacheutil -q group -a name admin |grep users)

/usr/local/sbin/FileWave.app/Contents/MacOS/fwcld -custom_write -key custom_string_01 -value "$currentadmins"

Notes

If you set your script to run at the "verification" phase then it will continue to run (default every 24hrs), for more on scripts see: Fileset Scripts.

Useful Commands


Example Custom Fields

Some example fields.

Example Custom Fields

Detecting the Display Model using a Custom Field

Use a FileWave Custom Field to collect the display model reported by Mac and Windows devices. This is useful when you want display information available in inventory, Smart Groups, or device lists without manually checking each computer.

Adding the Custom Field

  1. Download the Custom Field export: Display Model Custom Field.customfields.
  2. In FileWave Admin, go to Assistants > Custom Fields > Edit Custom Fields > Import and import the downloaded file.
  3. Save the changes in the Custom Fields dialog.
  4. Assign the Custom Field to the devices that should report display model information. You can right-click selected devices and choose Edit Custom Field(s) Associations, use a Smart Group to target the field, or enable Assigned to all devices while editing the Custom Field.

Display Model Custom Field configured as a client script

The imported field uses a client script. The Windows section uses PowerShell to read monitor information from ROOT\WMI:

$MonitorList = Get-WmiObject -Class WmiMonitorID -Namespace "ROOT\WMI"
$MonitorOutput = @()
  
foreach ($monitor in $MonitorList) {
$mon = @{}
$manufacturer = $null
$name = $null
  
foreach($ch in $monitor.ManufacturerName) {
if($ch -ne '00') {
$manufacturer += [char]$ch
}
}
  
foreach($ch in $monitor.UserFriendlyName) {
if($ch -ne '00') {
$name += [char]$ch
}
}
$mon = $manufacturer + " " + $name
$MonitorOutput += $mon
}
$MonitorOutput=$MonitorOutput -join ', '
$MonitorOutput
exit 0

The macOS section uses a shell script to read display details from system_profiler:

#!/bin/bash
DisplayModel=`system_profiler SPDisplaysDataType | grep "Resolution:" -B1 | awk -v n=3 'NR%n==1' | sed "s/^[ \t]*//" | sed 's/:/,/g' | tr '\n' ' '`
echo ${DisplayModel}
exit 0

After the field is imported and assigned, save the Custom Fields dialog and allow clients to check in. Devices with more than one attached display may report multiple display models as a comma-separated value.

Results

Once inventory has updated, add the Display Model column to the Clients view, use it in Smart Group criteria, or reference it anywhere Custom Field inventory values are useful.