Product/components used and version/fix level:

API GATEWAY

Detailed explanation of the problem:

One application from PREPROD with multiple consumers just gone from API gateway.

1. Exporting from PROD to PREPROD: I’m interested in understanding if it’s possible to export this application (APP) from the production (PROD) environment and install it on the pre-production (PREPROD) environment.
2. Promoting from DEV to PREPROD without impacting PROD: Additionally, I’d like to know if it’s feasible to promote the application from the development (DEV) environment to the pre-production (PREPROD) environment without causing any harm to the production (PROD) environment in the future.

NOTE:
The DEV and the PROD APP have the same ID

Error messages / full error message screenshot / log file:

Question related to a free trial, or to a production (customer) instance?

First of all, find out the reason why your Preprod application vanished all of a sudden. This is not normal, same might happen it prod as well. Something vanishing in prod will have higher impact.

Either Exporting from PROD to PREPROD or **Promoting from DEV to PREPROD" always make sure API’s are pointed to correct backend url’s, else pre prod requests might land up in production or vice versa.