Minor changes

    Check HTTP Response Status Code Is  200

    FOR    ${appInstance}    IN    @{response['body']}

        ##TODO validate against the new schema

        Validate Json    AppInstanceInfo.schema.json    ${appInstance}

        ${passed}    Run Keyword And Return Status  Should Be Equal As Strings  ${appInstance}[id]    ${NEW_APP_INSTANCE_ID}    

        Exit For Loop If    ${passed}

    Set Test Variable  ${NEW_APP_INSTANCE_ID}    ${response['body']['id']}  

    GET APP Instance   ${NEW_APP_INSTANCE_ID}  

    Check HTTP Response Status Code Is  200

    ##TODO validate against the new schema

    Check HTTP Response Body Json Schema Is   AppInstanceInfo

    Log   ${response['body']}

    Should Be Equal As Strings   ${response['body']['id']}    ${NEW_APP_INSTANCE_ID}

    [TearDown]  Delete APP Instance   ${NEW_APP_INSTANCE_ID}

    ...    ETSI GS MEC 010-2 3.1.1, clause 7.4.7.3.1

    ...    ETSI GS MEC 010-2 3.1.1, table 6.2.2.9.2-1  #TerminateAppRequest

    [Setup]  Create and Instantiate App Instance    CreateAppInstanceRequest     InstantiateAppRequest 

    ##TODO sleep for a while because the instantiation is not immediate

    Sleep  5   ##Change it according to your need

    Terminate App Request  ${APP_ID}  TerminateAppRequest    

    Check HTTP Response Status Code Is    202

    Check HTTP Response Header Contains    Location

GET all APP Instances 

    Log    Get all App Instances

    Set Headers    {"Accept":"application/json"}

    Set Headers    {"Content-Type":"*/*"}

    Set Headers    {"Authorization":"${TOKEN}"}