The Send JSON Path syntax for accessing an element from an Integration Procedure structure is BlockName.ElementName. In this case, the BlockName is BlockX and the ElementName is ActionZ. The colon (:) is used to separate the input and output parameters, not the block and element names. The order of the block and element names should follow the hierarchy of the structure, from top to bottom.

The input JSON paths In the DataRaptor Load must match the JSON from the OmniScript, otherwise the data will not be mapped correctly to the Salesforce fields. ContextId must be spelled correctly in the merge code that passes the Recordld to the DataRaptor, otherwise the DataRaptor will not be able to identify which record to update. The fields that are not updated are not necessarily read only in Salesforce, as they could be editable by other means. In the DataRaptor Load, in the Preview tab, the Record is from the wrong record type has no effect on updating data in Salesforce, as it is only used for testing purposes.

The Timeout property on the HTTP Action in the Integration Procedure specifies how long to wait for a response from the external system before throwing an error. The Chain On Step checkbox on the HTTP Action in the Integration Procedure indicates that the next action should be executed only if the current action is successful. These two configurations should be used to implement the call to the external system given its known performance issues.

The correct syntax for passing all of the parent FlexCard's records to a child FlexCard is {Records}, which represents an array of records. The other options are incorrect because they either use an invalid syntax or refer to a single record instead of an array of records.

According to the OmniStudio DataRaptor Extract documentation, if a developer wants to limit the number of records returned, the best way is to set the "Limit" property on the element or action that is calling the DataRaptor, such as in an Integration Procedure or OmniScript Action. A . Set the Limit property on the action that calls the Data Mapper Extract ?This is the correct method.
The calling context (e.g., OmniScript Action or Integration Procedure) includes a property for setting the limit on query results, which is a recommended and clean method to ensure only one record is retrieved.