1. In the navigation pane of Dev Studio, click Records.
2. Expand the Data Model category, and then click Data Transform.
3. In the list of data transform instances, click the PopulateAdditionalFields data transform that applies to the PPF-Data-Ext-Operator class, as shown in the following figure:

   

   

4. Copy the data transform to your ruleset:
   1. On the rule form header, click Save as.
   2. On the Save as Data Transform rule form, in the Context section, in the Add to ruleset list, select a ruleset to store the data transform.
   3. Click Create and open.
5. On the Definition tab, click Add a row.
6. In the Action column, select Set.
7. In the Target column, enter the property that you store in Pega Process Fabric Hub.For example: Enter .Skill.
8. In the Source column, enter the property that you store on the RequestPage.custom data page in your remote application.For example: Enter .skill.
9. Optional: To add more properties, repeat steps 5 through 8.
10. Click Save.

For example: The following figure shows the PopulateAdditionalFields data transform that maps the .skill property from the remote application to the .Skill property from Pega Process Fabric Hub:

As a result, Pega Process Fabric Hub can display error messages that include property names from the remote application, so that you can quickly identify and investigate a property that fails validation. You configure validation in the instance of your system that stores Pega Process Fabric Hub.

1. Provide validation for operator fields:

   Choices	Actions
   If you use standard validation logic for your properties, configure the ValidateAdditionalFields validate rule.	In the navigation pane of Dev Studio, click Records. Expand the Process category, and then click Validate. In the list of validate rules instances, click the ValidateAdditionalFields validate rule that applies to the PPF-Data-Ext-Operator class. On the validate rule form, click Save as. On the Save as Validate form, in the Context section, in the Add to ruleset list, select a ruleset to store the validate rule, and then click Create and open. On the Validate tab, create validation for your properties with required conditions. For more information, see Validating field input in complex scenarios. On the Validate form, click Save.For example: The following figure shows a validation for the .Skill property. The validation states that the only allowed values are greater than 0. If users provide an incorrect value, Pega Process Fabric Hub displays an error message.
   If you use advanced validation logic for your properties, configure the ValidateAdditionalFields activity.	In the navigation pane of Dev Studio, click Records. Expand the Technical category, and then click Activity. In the list of activity instances, click the ValidateAdditionalFields activity that applies to the PPF-Data-Ext-Operator class. On the activity rule form, click Save as. On the Save as Activity form, in the Context section, in the Add to ruleset list, select a ruleset to store the activity, and then click Create and open. Modify the validation method for your property. Modifications to the ValidateAdditionalFields activity depend on your unique business scenario. For more information, see Configuring steps in an activity. On the ValidateAdditionalFields activity rule form, click Save.

2. Configure the MapToAPIFields decision table:
   1. In the navigation pane of Dev Studio, click Records.
   2. Expand the Decision category, and then click Decision Table.
   3. In the list of decision table instances, click the MapToAPIFields decision table that applies to the PPF-Data-Ext-Operator class.
   4. On the decision table rule form, click Save as.
   5. On the Save as Decision Table form, in the Context section, in the Add to ruleset list, select the ruleset to store the decision table, and then click Create and open.
   6. On the Table tab, in the field name column, enter the property from Pega Process Fabric Hub that you want to validate.
   7. In the Return column, enter the matching property from your remote application.
   8. Optional: To map more properties, on the toolbar click Insert Row After, and then repeat steps 2.f and 2.g.
   9. Click Save.
   Result: For more intuitive debugging, Pega Process Fabric Hub displays the property name from your remote application, for example, in the error logs, as shown in the following figure:

   

   

You add custom operator fields to the Next Best Work algorithm by configuring the GetNextUnifiedWorkList and GetNextUnifiedWork report definitions that apply to the PPF-Work-Task class. You perform the configuration in the system that hosts Pega Process Fabric Hub.

1. Configure the GetNextUnifiedWorkList report definition:
   1. In the navigation pane of Dev Studio, click Records.
   2. Expand the Reports category, and then click Report Definition.
   3. In the list of report definition instances, click the GetNextUnifiedWorkList that applies to the PPF-Work-Task class.
   4. In the rule form header, click Save as.
   5. On the Save as report definition form, in the Context section, in the Add to ruleset list, select a ruleset to store the report definition.
   6. On the Query tab, click Add column.
   7. In the Column source column, enter the property from Pega Process Fabric Hub that you want to display.For example: Ensure that you start the property name with .Custom. For example, to add a field that stores a skill rating for speaking French, enter .Custom.FrenchRating.
   8. In the Column name column, enter a label for the field that you want to use in reports.For example: Enter French rating.
   9. Optional: To add more properties, repeat steps 1.f through 1.h.
   10. Click Save.
2. Configure the GetNextUnifiedWork report definition:
   1. In the navigation pane of Dev Studio, click Records.
   2. Expand the Reports category, and then click Report Definition.
   3. In the list of report definition instances, click the GetNextUnifiedWork that applies to the PPF-Work-Task class.
   4. Repeat steps 1.d through 1.j.