Hi,
The VCD-KE config definedEntity does not automatically complete by itself actually. After successful POST request to /cloudapi/1.0.0/entityTypes/urn:vcloud:type:vmware:VCDKEConfig:0.5.0, the newly created definedEntity of VCD-KE config will remain at 1% until you resolve it manually.

In order to bring it to completion, you must resolve it. To perform resolve operation:
Similar to what vBahubali01 said and in their image,

1. You must grab the ID of your definedEntity, it is the long ID where vBahubali01 drew a red box around in the previous reply. From your screenshot, yours start with: urn:vcloud:entity:vmware:VCDKEConfig:0cf0ffc8-...

2. After you have the ID, you will need to make a POST request using administrator to: https://{{vcd-site}}/cloudapi/1.0.0/entities/<long id from step 1>/resolve

  - Ensure urn:vcloud:entity:vmware:VCDKEConfig: is included as part of your ID. 

  - Example endpoint for POST using administrator credentials:

      https://{{vcd-site}}/cloudapi/1.0.0/entities/urn:vcloud:entity:vmware:VCDKEConfig:0cf0ffc8-.../resolve  

3. After successfully completing step 2, you should no longer see 1% but rather a success in VMware Cloud Director.

Let us know if this works out for you. Thanks!