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-Association-Participant class.
4. Copy the data transform into 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 .Email.
8. In the Source column, enter the property that you store on the RequestPage.custom data page in your remote application.For example: Enter .email.
9. Optional: To add more properties, repeat steps 5 to 8.
10. Click Save.
11. Optional: To perform an operation by using default or additional fields after saving an association field, override the PPF-Link-Association-Participant.PostSaveExtension activity and then add your logic based on your business requirements.
    For more information, see Configuring steps in an activity.
12. Optional: To perform an operation by using default or additional fields after you delete an association field, override the PPF-Link-Association-Participant.PostDeleteExtension activity and then add your logic based on business requirements.
    For more information, see Configuring steps in an activity.

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.

1. Provide validation for assignment fields:

   Choices	Actions
   Use standard validation logic for your properties and 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 rule instances, click the ValidateAdditionalFields validate rule that applies to the PPF-Data-Ext-Association-Participant class. On the validate rule form, click Save as. On the Save as Validate rule 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.
   Use advanced validation logic for your properties and 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-Association-Participant 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 of 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-Association-Participant 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 in which 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.

You add custom case fields to reports by configuring the GetResolvedCases and GetUnresolvedCases report definitions that apply to the PPF-Work-Case class and a MyCasesTable section. You perform the configuration in the system that hosts Pega Process Fabric Hub.

1. Configure the GetResolvedCases 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 GetResolvedCases report definition that applies to the PPF-Work-Case 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.
      Note: Ensure that you start the property name with .Custom. For example, to add a field that stores the email address of a case participant, enter .Email.
   8. In the Column name column, enter a label for the field that you want to use in reports.For example: Enter Participant email address.
   9. Optional: To add more properties, repeat steps 1.f through 1.h.
   10. On the Pages & Classes tab, in the Page name field, enter MyCasesTable.
   11. Click Save.
2. Configure the GetUnresolvedCases 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 GetUnresolvedCases report definition that applies to the PPF-Work-Case class.
   4. Repeat steps 1.d through 1.k.
3. Configure the MyCasesTable section:
   1. In the navigation pane of Dev Studio, click Records.
   2. Expand the User Interface category, and then click Section.
   3. In the list of section instances, click the MyCasesTable section that applies to the PPF-Work-Case class.
   4. On the rule form header, click Save as.
   5. On the Save as section form, in the Context section, in the Add to ruleset list, select a ruleset to store the report definition, and then click Create and open.
   6. On the Design tab, click a column in the table next to which you want to display an additional field, and then, on the toolbar, click either Insert column before selected or Insert column after selected, based on your requirement.
   7. Double-click the header of the new column, and then, in the Cell Properties dialog box, in the Value field, enter a label for the new column.For example: Enter Email Address.
   8. Click Submit.
   9. Double-click the cell in the new column, and then, in the Cell Properties dialog box, in the Property field, enter the additional assignment property from Pega Process Fabric Hub.For example: Enter .Custom.Email
      For more information about configuring sections, see Section form - Completing the Design tab.
   10. Click Submit.
   11. Optional: To add more fields, repeat steps 3.f through 3.j.
   12. Click Save.