Manually deleting the connection between the Pega Process Fabric Hub and a remote application
To manage resources and facilitate routing assignments, delete a remote application from the Pega Process Fabric Hub even when you cannot access this action from the application life cycle.
For example, when your remote application no longer pertains to your business scenario, to stop publishing data from the remote application to the Pega Process Fabric Hub, delete the application from the Pega Process Fabric Hub.As a best practice, to delete an application, manage the application life cycle. However, for specific scenarios the ability to delete an application through the application life cycle is unavailable. One example is when queue processors that correspond to the Pega Process Fabric Hub have invalid configuration. As a result, you might not be able to change the application status from Sync-InProgress. In such situations, manually delete the connection, first on the Pega Process Fabric Hub side, and then in the remote application. The connection stops working when you delete the rules that the Pega Process Fabric Hub saved in the remote application.
Deleting the connection on the Pega Process Fabric Hub side
To manually disconnect your remote application from the Pega Process Fabric Hub, first delete the remote application registration from your instance of the Pega Process Fabric Hub.
- Log in to Dev Studio as an administrator persona to manage the Pega Process Fabric Hub application.
- In the navigation pane of Dev Studio, click Records.
- Expand the Technical category, and then click Activity.
- In the list of instances, open the DeleteRecord instance
that applies to PPF-Work-Registration class, as shown in
the following figure:
DeleteRecord instance 
- In the rule form header, click .
- In the Run Activity: DeleteRecord window, in the
Parameter Value section, in the
ID field, enter the ID of the application
registration that you want to delete, for example,
REG-24059.
Note: Ensure that you enter the correct registration ID. If you delete data from another application, you cannot undo the deletion. - Click Run.
Result: A pop-up window displays the results. - Optional: To confirm that the activity ran, verify the status of the registration:
- In the navigation pane of Dev Studio, click App.
- On the Classes tab, click PPF-Work-Registration.
- In the list of application registration instances, find the application
that you want to delete from the Pega Process Fabric Hub, and
then check the value in the Work Status
column.
For example: The status of Resolved-Withdrawn indicates that you deleted the connection to the remote application on the Pega Process Fabric Hub side, as shown in the following figure: Deleted application registration 
Deleting the connection on the remote application side
To complete the process of manually deleting a remote application from the Pega Process Fabric Hub, delete the rules that the Pega Process Fabric Hub created in your remote application.
- Log in to Dev Studio as an administrator or configurator persona to manage the remote application.
- In the header of Dev Studio, click the name of the application, and then click Definition.
- On the Definition tab, in the Application
rulesets section, click Open next to the
top ruleset in the list.Typically, the Pega Process Fabric Hub uses the first ruleset in the application rulesets list to save rules. If your instance of the Pega Process Fabric Hub saves rules in another ruleset, ensure that you first open the correct ruleset.
- On the Versions tab, click the rule count in the
All rules column, as in the following figure:
Opening application rules 
- In the Rule name column, click Click to
filter, and then in the dialog box, in the Search
Text field, enter pyPF and click
Apply, as in the following figure:
Searching for Pega Process Fabric Hub rules 
Result: The results display rules that correspond to the Pega Process Fabric Hub. - Delete rules in the list:
- Click a rule instance.
- In the rule form header, click Delete.
- In the Delete dialog box, in the Reason
for deletion field, explain why you delete the
rule.
For example: Enter Deleting connection with the Pega Process Fabric Hub. - Click Delete.
- Repeat steps 6.a through 6.d for other rules that correspond to the Pega Process Fabric Hub.
- Optional: To save database resources, you can delete other records that correspond to the
Pega Process Fabric Hub, such as OAuth 2.0 client registration or
an authentication profile.For more information, see Deleting a rule.
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