Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

This pull request introduces a new helper function to update the default fallback connector configuration whenever a merchant connector account (MCA) is updated. This ensures that changes to connector status (such as disabling or enabling) are accurately reflected in both merchant and profile configurations. The changes also include necessary imports and function calls to integrate this logic into the connector update flow.

Connector fallback configuration updates:

• Added the update_default_fallback_on_mca_update function in routing/helpers.rs to update merchant and profile default connector configurations based on the status of the updated MCA. The function ensures that disabled or inactive connectors are removed from the defaults, and enabled connectors are added if not already present.
• Integrated the new helper into the update_connector flow in admin.rs, so it is triggered automatically after connector updates.

Imports and code organization:

• Added necessary imports for update_default_fallback_on_mca_update and related types in admin.rs and helpers.rs to support the new logic. [1] [2]

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

How did you test it?

1. Create two connectors namely adyen and wise
2. check configs table

 SELECT key, config
FROM configs
WHERE key = 'routing_default_po_pro_RTMoW14AvhG5cjmcpcNb';

 SELECT key, config
FROM configs
WHERE key = 'routing_default_po_merchant_id';

3. disable one of them
4. check configs table again for above query, this time the disabled shouldn't be present.
5. Re-enable the disabled connector, then query the table for the connector to be added back.

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible