CECN0138E (0x010C008A) CECN0138E The source server found the source system ID source-system-ID in the subscription subscription-name-1. You cannot use this source system ID for the subscription subscription-name-2.

Explanation
The subscription subscription-name-1 is already using the specified source system ID, and the subscription subscription-name-2 cannot use it.

User response
The source system ID name must be unique for all subscriptions in the source server. Specify a unique source system ID name and retry the action.