3585203 - Error "Sales Territory ID XXX must be outside internal number range 0 to 999999."

When trying to update the ID upon Sales Territory creation, you are facing the following error: "Sales Territory ID XXX must be outside internal number range 0 to 999999."

• SAP Sales Cloud Version 2
• SAP Sales Cloud and SAP Service Cloud Version 2

1. Go to Territories view.
2. Open any Territory.
3. Click "+" to create a Child Territory.
4. Fill in an ID.
5. Error "Sales Territory ID XXX must be outside internal number range 0 to 999999." appears. 

Display IDs are drawn from internal number range 0 to 999999 and it will not accept display IDs within this range sent in the request payload.

Hence, it will only accept alpha numeric Display IDs (Max 6 char), like S00001...S99999 or T00001-T99999.

ID, Territory , Create , Child , Error , Range  , KBA , CEC-CRM-TER , Territory for SAP Sales/Service Cloud , Problem