How To Fix RSCRM128 - Error when determining the external ID

RSCRM128 - Overview

• Message type: E = Error

• Message class: RSCRM - RSCRM: Messages

• Message number: 128

• Message text: Error when determining the external ID

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.

RSCRM128 - Details

• The SAP error message RSCRM128 typically occurs in the context of SAP systems when there is an issue with determining the external ID for a specific object, often related to the integration between SAP systems and external systems (like CRM or other third-party applications). This error can arise due to various reasons, including configuration issues, data inconsistencies, or problems with the communication between systems.
  Causes of RSCRM128 Error
  
  
  Missing or Incorrect Configuration: The integration settings between SAP and the external system may not be correctly configured. This includes settings in the CRM system or middleware.
  
  
  Data Inconsistencies: The data in the SAP system may not match the expected format or may be incomplete, leading to issues when trying to determine the external ID.
  
  
  Authorization Issues: The user or system trying to access the external ID may not have the necessary permissions to retrieve or create the ID.
  
  
  Network or Connectivity Issues: If the external system