How To Fix PP_KAB_ODATA_API_PSA019 - Property &1 is a key and cannot be initial

SAP Error Message - Details

• Message type: E = Error

• Message class: PP_KAB_ODATA_API_PSA - Messages for Production Supply Area OData API

• Message number: 019

• Message text: Property &1 is a key and cannot be initial

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message PP_KAB_ODATA_API_PSA019 - Property &1 is a key and cannot be initial ?

  The SAP error message PP_KAB_ODATA_API_PSA019 indicates that a property marked as a key in an OData service cannot be initialized or set to an initial value. This typically occurs when you are trying to create or update an entity in an OData service, and one of the required key properties is not being provided or is being set to an invalid value (like null or an empty string).
  Cause:
  
  Missing Key Property: The key property that is required for the entity is not being sent in the request.
  Incorrect Value: The key property is being sent but has an invalid or initial value (e.g., empty or null).
  Data Model Configuration: There may be an issue with the data model configuration in the OData service where the key properties are not correctly defined.
  
  Solution:
  
  
  Check the Request Payload: Ensure that the request payload includes all required key properties with valid values. For example, if you are creating a new entity, make sure to include all necessary key fields.
  
  
  Validate Key Properties: Review the OData service metadata to confirm which properties are defined as keys. Ensure that these properties are being populated correctly in your request.
  
  
  Debugging: If you have access to the backend, you can debug the OData service to see what values are being received and where the failure occurs.
  
  
  Review OData Service Configuration: If you are the developer or have access to the OData service configuration, check the service definition to ensure that the key properties are correctly defined and that there are no discrepancies.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific OData service you are using to understand the requirements for key properties.
  
  
  Related Information:
  
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. Understanding how OData services work can help in troubleshooting issues related to data exchange.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific OData service you are using.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.